diff --git a/packages/server/src/utils/volume-backups/backup.ts b/packages/server/src/utils/volume-backups/backup.ts
index 3d229ef64..ad3eea29f 100644
--- a/packages/server/src/utils/volume-backups/backup.ts
+++ b/packages/server/src/utils/volume-backups/backup.ts
@@ -13,7 +13,10 @@ export const backupVolume = async (
 	const { VOLUME_BACKUPS_PATH, VOLUME_BACKUP_LOCK_PATH } = paths(!!serverId);
 	const destination = volumeBackup.destination;
 	const backupFileName = `${volumeName}-${new Date().toISOString()}.tar`;
-	const bucketDestination = `${normalizeS3Path(prefix)}${backupFileName}`;
+	const effectivePrefix = prefix
+		? normalizeS3Path(prefix)
+		: `${volumeBackup.appName}/`;
+	const bucketDestination = `${effectivePrefix}${backupFileName}`;
 	const rcloneFlags = getS3Credentials(volumeBackup.destination);
 	const rcloneDestination = `:s3:${destination.bucket}/${bucketDestination}`;
 	const volumeBackupPath = path.join(VOLUME_BACKUPS_PATH, volumeBackup.appName);
diff --git a/packages/server/src/utils/volume-backups/utils.ts b/packages/server/src/utils/volume-backups/utils.ts
index d9e0b3bd5..d179dd096 100644
--- a/packages/server/src/utils/volume-backups/utils.ts
+++ b/packages/server/src/utils/volume-backups/utils.ts
@@ -81,7 +81,9 @@ const cleanupOldVolumeBackups = async (
 
 	try {
 		const rcloneFlags = getS3Credentials(destination);
-		const normalizedPrefix = normalizeS3Path(prefix);
+		const normalizedPrefix = prefix
+			? normalizeS3Path(prefix)
+			: `${volumeBackup.appName}/`;
 		const backupFilesPath = `:s3:${destination.bucket}/${normalizedPrefix}`;
 		const listCommand = `rclone lsf ${rcloneFlags.join(" ")} --include \"${volumeName}-*.tar\" :s3:${destination.bucket}/${normalizedPrefix}`;
 		const sortAndPick = `sort -r | tail -n +$((${keepLatestCount}+1)) | xargs -I{}`;