diff --git a/apps/client/app/api-client/@tanstack/react-query.gen.ts b/apps/client/app/api-client/@tanstack/react-query.gen.ts
index d6611e1..7f47a15 100644
--- a/apps/client/app/api-client/@tanstack/react-query.gen.ts
+++ b/apps/client/app/api-client/@tanstack/react-query.gen.ts
@@ -36,6 +36,7 @@ import {
 	updateBackupSchedule,
 	getBackupScheduleForVolume,
 	runBackupNow,
+	stopBackup,
 	getSystemInfo,
 	downloadResticPassword,
 } from "../sdk.gen";
@@ -94,9 +95,10 @@ import type {
 	GetBackupScheduleForVolumeData,
 	RunBackupNowData,
 	RunBackupNowResponse,
+	StopBackupData,
+	StopBackupResponse,
 	GetSystemInfoData,
 	DownloadResticPasswordData,
-	DownloadResticPasswordError,
 	DownloadResticPasswordResponse,
 } from "../types.gen";
 import { client as _heyApiClient } from "../client.gen";
@@ -1108,6 +1110,45 @@ export const runBackupNowMutation = (
 	return mutationOptions;
 };
 
+export const stopBackupQueryKey = (options: Options<StopBackupData>) => createQueryKey("stopBackup", options);
+
+/**
+ * Stop a backup that is currently in progress
+ */
+export const stopBackupOptions = (options: Options<StopBackupData>) => {
+	return queryOptions({
+		queryFn: async ({ queryKey, signal }) => {
+			const { data } = await stopBackup({
+				...options,
+				...queryKey[0],
+				signal,
+				throwOnError: true,
+			});
+			return data;
+		},
+		queryKey: stopBackupQueryKey(options),
+	});
+};
+
+/**
+ * Stop a backup that is currently in progress
+ */
+export const stopBackupMutation = (
+	options?: Partial<Options<StopBackupData>>,
+): UseMutationOptions<StopBackupResponse, DefaultError, Options<StopBackupData>> => {
+	const mutationOptions: UseMutationOptions<StopBackupResponse, DefaultError, Options<StopBackupData>> = {
+		mutationFn: async (localOptions) => {
+			const { data } = await stopBackup({
+				...options,
+				...localOptions,
+				throwOnError: true,
+			});
+			return data;
+		},
+	};
+	return mutationOptions;
+};
+
 export const getSystemInfoQueryKey = (options?: Options<GetSystemInfoData>) => createQueryKey("getSystemInfo", options);
 
 /**
@@ -1154,14 +1195,10 @@ export const downloadResticPasswordOptions = (options?: Options<DownloadResticPa
  */
 export const downloadResticPasswordMutation = (
 	options?: Partial<Options<DownloadResticPasswordData>>,
-): UseMutationOptions<
-	DownloadResticPasswordResponse,
-	DownloadResticPasswordError,
-	Options<DownloadResticPasswordData>
-> => {
+): UseMutationOptions<DownloadResticPasswordResponse, DefaultError, Options<DownloadResticPasswordData>> => {
 	const mutationOptions: UseMutationOptions<
 		DownloadResticPasswordResponse,
-		DownloadResticPasswordError,
+		DefaultError,
 		Options<DownloadResticPasswordData>
 	> = {
 		mutationFn: async (localOptions) => {
diff --git a/apps/client/app/api-client/sdk.gen.ts b/apps/client/app/api-client/sdk.gen.ts
index 3222a98..f5d1dc2 100644
--- a/apps/client/app/api-client/sdk.gen.ts
+++ b/apps/client/app/api-client/sdk.gen.ts
@@ -74,11 +74,13 @@ import type {
 	GetBackupScheduleForVolumeResponses,
 	RunBackupNowData,
 	RunBackupNowResponses,
+	StopBackupData,
+	StopBackupResponses,
+	StopBackupErrors,
 	GetSystemInfoData,
 	GetSystemInfoResponses,
 	DownloadResticPasswordData,
 	DownloadResticPasswordResponses,
-	DownloadResticPasswordErrors,
 } from "./types.gen";
 import { client as _heyApiClient } from "./client.gen";
 
@@ -533,6 +535,16 @@ export const runBackupNow = <ThrowOnError extends boolean = false>(
 	});
 };
 
+/**
+ * Stop a backup that is currently in progress
+ */
+export const stopBackup = <ThrowOnError extends boolean = false>(options: Options<StopBackupData, ThrowOnError>) => {
+	return (options.client ?? _heyApiClient).post<StopBackupResponses, StopBackupErrors, ThrowOnError>({
+		url: "/api/v1/backups/{scheduleId}/stop",
+		...options,
+	});
+};
+
 /**
  * Get system information including available capabilities
  */
@@ -551,11 +563,7 @@ export const getSystemInfo = <ThrowOnError extends boolean = false>(
 export const downloadResticPassword = <ThrowOnError extends boolean = false>(
 	options?: Options<DownloadResticPasswordData, ThrowOnError>,
 ) => {
-	return (options?.client ?? _heyApiClient).post<
-		DownloadResticPasswordResponses,
-		DownloadResticPasswordErrors,
-		ThrowOnError
-	>({
+	return (options?.client ?? _heyApiClient).post<DownloadResticPasswordResponses, unknown, ThrowOnError>({
 		url: "/api/v1/system/restic-password",
 		...options,
 		headers: {
diff --git a/apps/client/app/api-client/types.gen.ts b/apps/client/app/api-client/types.gen.ts
index 09b90cd..b1c526d 100644
--- a/apps/client/app/api-client/types.gen.ts
+++ b/apps/client/app/api-client/types.gen.ts
@@ -1480,6 +1480,33 @@ export type RunBackupNowResponses = {
 
 export type RunBackupNowResponse = RunBackupNowResponses[keyof RunBackupNowResponses];
 
+export type StopBackupData = {
+	body?: never;
+	path: {
+		scheduleId: string;
+	};
+	query?: never;
+	url: "/api/v1/backups/{scheduleId}/stop";
+};
+
+export type StopBackupErrors = {
+	/**
+	 * No backup is currently running for this schedule
+	 */
+	409: unknown;
+};
+
+export type StopBackupResponses = {
+	/**
+	 * Backup stopped successfully
+	 */
+	200: {
+		success: boolean;
+	};
+};
+
+export type StopBackupResponse = StopBackupResponses[keyof StopBackupResponses];
+
 export type GetSystemInfoData = {
 	body?: never;
 	path?: never;
@@ -1509,17 +1536,6 @@ export type DownloadResticPasswordData = {
 	url: "/api/v1/system/restic-password";
 };
 
-export type DownloadResticPasswordErrors = {
-	/**
-	 * Authentication required or incorrect password
-	 */
-	401: {
-		message?: string;
-	};
-};
-
-export type DownloadResticPasswordError = DownloadResticPasswordErrors[keyof DownloadResticPasswordErrors];
-
 export type DownloadResticPasswordResponses = {
 	/**
 	 * Restic password file content
diff --git a/apps/client/app/modules/backups/components/schedule-summary.tsx b/apps/client/app/modules/backups/components/schedule-summary.tsx
index f1496e8..edb8b2b 100644
--- a/apps/client/app/modules/backups/components/schedule-summary.tsx
+++ b/apps/client/app/modules/backups/components/schedule-summary.tsx
@@ -1,4 +1,4 @@
-import { Pencil, Play, Trash2 } from "lucide-react";
+import { Pencil, Play, Square, Trash2 } from "lucide-react";
 import { useMemo, useState } from "react";
 import { OnOff } from "~/components/onoff";
 import { Button } from "~/components/ui/button";
@@ -18,12 +18,14 @@ type Props = {
 	schedule: BackupSchedule;
 	handleToggleEnabled: (enabled: boolean) => void;
 	handleRunBackupNow: () => void;
+	handleStopBackup: () => void;
 	handleDeleteSchedule: () => void;
 	setIsEditMode: (isEdit: boolean) => void;
 };
 
 export const ScheduleSummary = (props: Props) => {
-	const { schedule, handleToggleEnabled, handleRunBackupNow, handleDeleteSchedule, setIsEditMode } = props;
+	const { schedule, handleToggleEnabled, handleRunBackupNow, handleStopBackup, handleDeleteSchedule, setIsEditMode } =
+		props;
 	const [showDeleteConfirm, setShowDeleteConfirm] = useState(false);
 
 	const summary = useMemo(() => {
@@ -75,16 +77,17 @@ export const ScheduleSummary = (props: Props) => {
 						</div>
 					</div>
 					<div className="flex flex-col sm:flex-row gap-2">
-						<Button
-							variant="default"
-							size="sm"
-							onClick={handleRunBackupNow}
-							disabled={schedule.lastBackupStatus === "in_progress"}
-							className="w-full sm:w-auto"
-						>
-							<Play className="h-4 w-4 mr-2" />
-							<span className="sm:inline">Backup now</span>
-						</Button>
+						{schedule.lastBackupStatus === "in_progress" ? (
+							<Button variant="destructive" size="sm" onClick={handleStopBackup} className="w-full sm:w-auto">
+								<Square className="h-4 w-4 mr-2" />
+								<span className="sm:inline">Stop backup</span>
+							</Button>
+						) : (
+							<Button variant="default" size="sm" onClick={handleRunBackupNow} className="w-full sm:w-auto">
+								<Play className="h-4 w-4 mr-2" />
+								<span className="sm:inline">Backup now</span>
+							</Button>
+						)}
 						<Button variant="outline" size="sm" onClick={() => setIsEditMode(true)} className="w-full sm:w-auto">
 							<Pencil className="h-4 w-4 mr-2" />
 							<span className="sm:inline">Edit schedule</span>
diff --git a/apps/client/app/modules/backups/routes/backup-details.tsx b/apps/client/app/modules/backups/routes/backup-details.tsx
index d87c7dc..aa6b35f 100644
--- a/apps/client/app/modules/backups/routes/backup-details.tsx
+++ b/apps/client/app/modules/backups/routes/backup-details.tsx
@@ -9,6 +9,7 @@ import {
 	deleteBackupScheduleMutation,
 	listSnapshotsOptions,
 	updateBackupScheduleMutation,
+	stopBackupMutation,
 } from "~/api-client/@tanstack/react-query.gen";
 import { parseError } from "~/lib/errors";
 import { getCronExpression } from "~/utils/utils";
@@ -44,9 +45,7 @@ export default function ScheduleDetailsPage({ params, loaderData }: Route.Compon
 	const [selectedSnapshotId, setSelectedSnapshotId] = useState<string>();
 
 	const { data: schedule } = useQuery({
-		...getBackupScheduleOptions({
-			path: { scheduleId: params.id },
-		}),
+		...getBackupScheduleOptions({ path: { scheduleId: params.id } }),
 		initialData: loaderData,
 		refetchInterval: 10000,
 		refetchOnWindowFocus: true,
@@ -57,13 +56,10 @@ export default function ScheduleDetailsPage({ params, loaderData }: Route.Compon
 		isLoading,
 		failureReason,
 	} = useQuery({
-		...listSnapshotsOptions({
-			path: { name: schedule.repository.name },
-			query: { backupId: schedule.id.toString() },
-		}),
+		...listSnapshotsOptions({ path: { name: schedule.repository.name }, query: { backupId: schedule.id.toString() } }),
 	});
 
-	const upsertSchedule = useMutation({
+	const updateSchedule = useMutation({
 		...updateBackupScheduleMutation(),
 		onSuccess: () => {
 			toast.success("Backup schedule saved successfully");
@@ -82,9 +78,17 @@ export default function ScheduleDetailsPage({ params, loaderData }: Route.Compon
 			toast.success("Backup started successfully");
 		},
 		onError: (error) => {
-			toast.error("Failed to start backup", {
-				description: parseError(error)?.message,
-			});
+			toast.error("Failed to start backup", { description: parseError(error)?.message });
+		},
+	});
+
+	const stopBackup = useMutation({
+		...stopBackupMutation(),
+		onSuccess: () => {
+			toast.success("Backup stopped successfully");
+		},
+		onError: (error) => {
+			toast.error("Failed to stop backup", { description: parseError(error)?.message });
 		},
 	});
 
@@ -95,9 +99,7 @@ export default function ScheduleDetailsPage({ params, loaderData }: Route.Compon
 			navigate("/backups");
 		},
 		onError: (error) => {
-			toast.error("Failed to delete backup schedule", {
-				description: parseError(error)?.message,
-			});
+			toast.error("Failed to delete backup schedule", { description: parseError(error)?.message });
 		},
 	});
 
@@ -114,7 +116,7 @@ export default function ScheduleDetailsPage({ params, loaderData }: Route.Compon
 		if (formValues.keepMonthly) retentionPolicy.keepMonthly = formValues.keepMonthly;
 		if (formValues.keepYearly) retentionPolicy.keepYearly = formValues.keepYearly;
 
-		upsertSchedule.mutate({
+		updateSchedule.mutate({
 			path: { scheduleId: schedule.id.toString() },
 			body: {
 				repositoryId: formValues.repositoryId,
@@ -128,9 +130,7 @@ export default function ScheduleDetailsPage({ params, loaderData }: Route.Compon
 	};
 
 	const handleToggleEnabled = (enabled: boolean) => {
-		if (!schedule) return;
-
-		upsertSchedule.mutate({
+		updateSchedule.mutate({
 			path: { scheduleId: schedule.id.toString() },
 			body: {
 				repositoryId: schedule.repositoryId,
@@ -143,28 +143,12 @@ export default function ScheduleDetailsPage({ params, loaderData }: Route.Compon
 		});
 	};
 
-	const handleRunBackupNow = () => {
-		if (!schedule) return;
-
-		runBackupNow.mutate({
-			path: {
-				scheduleId: schedule.id.toString(),
-			},
-		});
-	};
-
-	const handleDeleteSchedule = () => {
-		if (!schedule) return;
-
-		deleteSchedule.mutate({ path: { scheduleId: schedule.id.toString() } });
-	};
-
 	if (isEditMode) {
 		return (
 			<div>
 				<CreateScheduleForm volume={schedule.volume} initialValues={schedule} onSubmit={handleSubmit} formId={formId} />
 				<div className="flex justify-end mt-4 gap-2">
-					<Button type="submit" className="ml-auto" variant="primary" form={formId} loading={upsertSchedule.isPending}>
+					<Button type="submit" className="ml-auto" variant="primary" form={formId} loading={updateSchedule.isPending}>
 						Update schedule
 					</Button>
 					<Button variant="outline" onClick={() => setIsEditMode(false)}>
@@ -181,8 +165,9 @@ export default function ScheduleDetailsPage({ params, loaderData }: Route.Compon
 		<div className="flex flex-col gap-6">
 			<ScheduleSummary
 				handleToggleEnabled={handleToggleEnabled}
-				handleRunBackupNow={handleRunBackupNow}
-				handleDeleteSchedule={handleDeleteSchedule}
+				handleRunBackupNow={() => runBackupNow.mutate({ path: { scheduleId: schedule.id.toString() } })}
+				handleStopBackup={() => stopBackup.mutate({ path: { scheduleId: schedule.id.toString() } })}
+				handleDeleteSchedule={() => deleteSchedule.mutate({ path: { scheduleId: schedule.id.toString() } })}
 				setIsEditMode={setIsEditMode}
 				schedule={schedule}
 			/>
diff --git a/apps/server/src/core/events.ts b/apps/server/src/core/events.ts
index 222d005..2e5d838 100644
--- a/apps/server/src/core/events.ts
+++ b/apps/server/src/core/events.ts
@@ -10,7 +10,7 @@ interface ServerEvents {
 		scheduleId: number;
 		volumeName: string;
 		repositoryName: string;
-		status: "success" | "error";
+		status: "success" | "error" | "stopped";
 	}) => void;
 	"volume:mounted": (data: { volumeName: string }) => void;
 	"volume:unmounted": (data: { volumeName: string }) => void;
diff --git a/apps/server/src/modules/backups/backups.controller.ts b/apps/server/src/modules/backups/backups.controller.ts
index fcd8895..67c63c5 100644
--- a/apps/server/src/modules/backups/backups.controller.ts
+++ b/apps/server/src/modules/backups/backups.controller.ts
@@ -8,6 +8,7 @@ import {
 	getBackupScheduleForVolumeDto,
 	listBackupSchedulesDto,
 	runBackupNowDto,
+	stopBackupDto,
 	updateBackupScheduleDto,
 	updateBackupScheduleBody,
 	type CreateBackupScheduleDto,
@@ -16,6 +17,7 @@ import {
 	type GetBackupScheduleForVolumeResponseDto,
 	type ListBackupSchedulesResponseDto,
 	type RunBackupNowDto,
+	type StopBackupDto,
 	type UpdateBackupScheduleDto,
 } from "./backups.dto";
 import { backupsService } from "./backups.service";
@@ -69,4 +71,11 @@ export const backupScheduleController = new Hono()
 		});
 
 		return c.json<RunBackupNowDto>({ success: true }, 200);
+	})
+	.post("/:scheduleId/stop", stopBackupDto, async (c) => {
+		const scheduleId = c.req.param("scheduleId");
+
+		await backupsService.stopBackup(Number(scheduleId));
+
+		return c.json<StopBackupDto>({ success: true }, 200);
 	});
diff --git a/apps/server/src/modules/backups/backups.dto.ts b/apps/server/src/modules/backups/backups.dto.ts
index ce0b43c..207501f 100644
--- a/apps/server/src/modules/backups/backups.dto.ts
+++ b/apps/server/src/modules/backups/backups.dto.ts
@@ -223,3 +223,31 @@ export const runBackupNowDto = describeRoute({
 		},
 	},
 });
+
+/**
+ * Stop a running backup
+ */
+export const stopBackupResponse = type({
+	success: "boolean",
+});
+
+export type StopBackupDto = typeof stopBackupResponse.infer;
+
+export const stopBackupDto = describeRoute({
+	description: "Stop a backup that is currently in progress",
+	operationId: "stopBackup",
+	tags: ["Backups"],
+	responses: {
+		200: {
+			description: "Backup stopped successfully",
+			content: {
+				"application/json": {
+					schema: resolver(stopBackupResponse),
+				},
+			},
+		},
+		409: {
+			description: "No backup is currently running for this schedule",
+		},
+	},
+});
diff --git a/apps/server/src/modules/backups/backups.service.ts b/apps/server/src/modules/backups/backups.service.ts
index 93bcfa0..37a97af 100644
--- a/apps/server/src/modules/backups/backups.service.ts
+++ b/apps/server/src/modules/backups/backups.service.ts
@@ -1,7 +1,7 @@
 import { eq } from "drizzle-orm";
 import cron from "node-cron";
 import { CronExpressionParser } from "cron-parser";
-import { NotFoundError, BadRequestError } from "http-errors-enhanced";
+import { NotFoundError, BadRequestError, ConflictError } from "http-errors-enhanced";
 import { db } from "../../db/db";
 import { backupSchedulesTable, repositoriesTable, volumesTable } from "../../db/schema";
 import { restic } from "../../utils/restic";
@@ -11,6 +11,8 @@ import type { CreateBackupScheduleBody, UpdateBackupScheduleBody } from "./backu
 import { toMessage } from "../../utils/errors";
 import { serverEvents } from "../../core/events";
 
+const runningBackups = new Map<number, AbortController>();
+
 const calculateNextRun = (cronExpression: string): number => {
 	try {
 		const interval = CronExpressionParser.parse(cronExpression, {
@@ -198,6 +200,9 @@ const executeBackup = async (scheduleId: number, manual = false) => {
 		.set({ lastBackupStatus: "in_progress", updatedAt: Date.now() })
 		.where(eq(backupSchedulesTable.id, scheduleId));
 
+	const abortController = new AbortController();
+	runningBackups.set(scheduleId, abortController);
+
 	try {
 		const volumePath = getVolumePath(volume);
 
@@ -205,8 +210,10 @@ const executeBackup = async (scheduleId: number, manual = false) => {
 			exclude?: string[];
 			include?: string[];
 			tags?: string[];
+			signal?: AbortSignal;
 		} = {
 			tags: [schedule.id.toString()],
+			signal: abortController.signal,
 		};
 
 		if (schedule.excludePatterns && schedule.excludePatterns.length > 0) {
@@ -264,6 +271,8 @@ const executeBackup = async (scheduleId: number, manual = false) => {
 		});
 
 		throw error;
+	} finally {
+		runningBackups.delete(scheduleId);
 	}
 };
 
@@ -293,6 +302,34 @@ const getScheduleForVolume = async (volumeId: number) => {
 	return schedule ?? null;
 };
 
+const stopBackup = async (scheduleId: number) => {
+	const schedule = await db.query.backupSchedulesTable.findFirst({
+		where: eq(backupSchedulesTable.id, scheduleId),
+	});
+
+	if (!schedule) {
+		throw new NotFoundError("Backup schedule not found");
+	}
+
+	await db
+		.update(backupSchedulesTable)
+		.set({
+			lastBackupStatus: "error",
+			lastBackupError: "Backup was stopped by user",
+			updatedAt: Date.now(),
+		})
+		.where(eq(backupSchedulesTable.id, scheduleId));
+
+	const abortController = runningBackups.get(scheduleId);
+	if (!abortController) {
+		throw new ConflictError("No backup is currently running for this schedule");
+	}
+
+	logger.info(`Stopping backup for schedule ${scheduleId}`);
+
+	abortController.abort();
+};
+
 export const backupsService = {
 	listSchedules,
 	getSchedule,
@@ -302,4 +339,5 @@ export const backupsService = {
 	executeBackup,
 	getSchedulesToExecute,
 	getScheduleForVolume,
+	stopBackup,
 };
diff --git a/apps/server/src/modules/events/events.controller.ts b/apps/server/src/modules/events/events.controller.ts
index ee8f61d..038aabe 100644
--- a/apps/server/src/modules/events/events.controller.ts
+++ b/apps/server/src/modules/events/events.controller.ts
@@ -23,7 +23,7 @@ export const eventsController = new Hono().get("/", (c) => {
 			scheduleId: number;
 			volumeName: string;
 			repositoryName: string;
-			status: "success" | "error";
+			status: "success" | "error" | "stopped";
 		}) => {
 			stream.writeSSE({
 				data: JSON.stringify(data),
diff --git a/apps/server/src/utils/restic.ts b/apps/server/src/utils/restic.ts
index c2bcb4f..c8d3bd4 100644
--- a/apps/server/src/utils/restic.ts
+++ b/apps/server/src/utils/restic.ts
@@ -1,6 +1,7 @@
 import crypto from "node:crypto";
 import fs from "node:fs/promises";
 import path from "node:path";
+import { spawn } from "node:child_process";
 import type { RepositoryConfig } from "@ironmount/schemas/restic";
 import { type } from "arktype";
 import { $ } from "bun";
@@ -114,7 +115,7 @@ const init = async (config: RepositoryConfig) => {
 const backup = async (
 	config: RepositoryConfig,
 	source: string,
-	options?: { exclude?: string[]; include?: string[]; tags?: string[] },
+	options?: { exclude?: string[]; include?: string[]; tags?: string[]; signal?: AbortSignal },
 ) => {
 	const repoUrl = buildRepoUrl(config);
 	const env = await buildEnv(config);
@@ -148,32 +149,68 @@ const backup = async (
 
 	args.push("--json");
 
-	// await $`restic unlock --repo ${repoUrl}`.env(env).nothrow();
-	const res = await $`restic ${args}`.env(env).nothrow();
+	return new Promise((resolve, reject) => {
+		const child = spawn("restic", args, {
+			env: { ...process.env, ...env },
+			signal: options?.signal,
+		});
 
-	if (includeFile) {
-		await fs.unlink(includeFile).catch(() => {});
-	}
+		let stdout = "";
+		let stderr = "";
 
-	if (res.exitCode !== 0) {
-		logger.error(`Restic backup failed: ${res.stderr}`);
-		throw new Error(`Restic backup failed: ${res.stderr}`);
-	}
+		child.stdout.on("data", (data) => {
+			stdout += data.toString();
+		});
 
-	// res is a succession of JSON objects, we need to parse the last one which contains the summary
-	const stdout = res.text();
-	const outputLines = stdout.trim().split("\n");
-	const lastLine = outputLines[outputLines.length - 1];
-	const resSummary = JSON.parse(lastLine ?? "{}");
+		child.stderr.on("data", (data) => {
+			stderr += data.toString();
+		});
 
-	const result = backupOutputSchema(resSummary);
+		child.on("error", async (error) => {
+			if (includeFile) {
+				await fs.unlink(includeFile).catch(() => {});
+			}
 
-	if (result instanceof type.errors) {
-		logger.error(`Restic backup output validation failed: ${result}`);
-		throw new Error(`Restic backup output validation failed: ${result}`);
-	}
+			if (error.name === "AbortError") {
+				logger.info("Restic backup process was aborted");
+				reject(error);
+			} else {
+				logger.error(`Restic backup process error: ${error.message}`);
+				reject(new Error(`Restic backup process error: ${error.message}`));
+			}
+		});
 
-	return result;
+		child.on("close", async (code) => {
+			if (includeFile) {
+				await fs.unlink(includeFile).catch(() => {});
+			}
+
+			if (code !== 0) {
+				logger.error(`Restic backup failed with exit code ${code}: ${stderr}`);
+				reject(new Error(`Restic backup failed: ${stderr}`));
+				return;
+			}
+
+			try {
+				const outputLines = stdout.trim().split("\n");
+				const lastLine = outputLines[outputLines.length - 1];
+				const resSummary = JSON.parse(lastLine ?? "{}");
+
+				const result = backupOutputSchema(resSummary);
+
+				if (result instanceof type.errors) {
+					logger.error(`Restic backup output validation failed: ${result}`);
+					reject(new Error(`Restic backup output validation failed: ${result}`));
+					return;
+				}
+
+				resolve(result);
+			} catch (error) {
+				logger.error(`Failed to parse restic backup output: ${error}`);
+				reject(new Error(`Failed to parse restic backup output: ${error}`));
+			}
+		});
+	});
 };
 
 const restoreOutputSchema = type({