diff --git a/app/server/modules/lifecycle/migration.ts b/app/server/modules/lifecycle/migration.ts
index 5f1cabf..bb62fa1 100644
--- a/app/server/modules/lifecycle/migration.ts
+++ b/app/server/modules/lifecycle/migration.ts
@@ -99,6 +99,11 @@ const migrateRepositoryFolders = async (): Promise<MigrationResult> => {
 
 		const config = repo.config as Extract<RepositoryConfig, { backend: "local" }>;
 
+		if (config.isExistingRepository) {
+			logger.debug(`Skipping imported repository "${repo.name}" - folder path is user-defined`);
+			continue;
+		}
+
 		if (config.name === repo.shortId) {
 			continue;
 		}
diff --git a/app/server/modules/repositories/repositories.service.ts b/app/server/modules/repositories/repositories.service.ts
index 3ce1be2..c79f6e5 100644
--- a/app/server/modules/repositories/repositories.service.ts
+++ b/app/server/modules/repositories/repositories.service.ts
@@ -367,6 +367,15 @@ const updateRepository = async (name: string, updates: { name?: string; compress
 		throw new NotFoundError("Repository not found");
 	}
 
+	if (
+		updates.name !== undefined &&
+		updates.name !== existing.name &&
+		existing.config.backend === "local" &&
+		existing.config.isExistingRepository
+	) {
+		throw new ConflictError("Cannot rename an imported local repository");
+	}
+
 	let newName = existing.name;
 	if (updates.name !== undefined && updates.name !== existing.name) {
 		const newSlug = slugify(updates.name, { lower: true, strict: true });