diff --git a/src/controllers/backup-controller.ts b/src/controllers/backup-controller.ts
index 024ea84..aa3bc3f 100644
--- a/src/controllers/backup-controller.ts
+++ b/src/controllers/backup-controller.ts
@@ -22,10 +22,8 @@ const MINIO_PORT = process.env.MINIO_PORT;
 const MINIO_ACCESS_KEY = getEnvVar("MINIO_ACCESS_KEY");
 const MINIO_SECRET_KEY = getEnvVar("MINIO_SECRET_KEY");
 const MINIO_BUCKET = getEnvVar("MINIO_BUCKET");
-const MINIO_BACKUP_FILE_PREFIX = process.env.MINIO_BACKUP_FILE_PREFIX?.split("/")
-  .filter(Boolean)
-  .join("/")
-  .concat("/");
+const MINIO_BACKUP_FILE_PREFIX =
+  process.env.MINIO_BACKUP_FILE_PREFIX?.split("/").filter(Boolean).join("/").concat("/") || "";
 
 const minio = new MinioClient({
   useSSL: MINIO_USE_SSL === "true",
@@ -129,7 +127,7 @@ export class BackupController extends Controller {
 
   @Delete("delete")
   async deleteBackup(@Body() body: { filename: string }) {
-    await minio.removeObject(MINIO_BUCKET, body.filename, {
+    await minio.removeObject(MINIO_BUCKET, MINIO_BACKUP_FILE_PREFIX + body.filename, {
       forceDelete: true,
     });
   }