diff --git a/frameworks/native/backup_ext/ani/ets/@ohos.application.BackupExtensionAbility.ets b/frameworks/native/backup_ext/ani/ets/@ohos.application.BackupExtensionAbility.ets
index b5aedba5e124a7bda30bef2560ace07d33542117..2941755b9a0310aa5b132925b55900e2b583c66c 100644
--- a/frameworks/native/backup_ext/ani/ets/@ohos.application.BackupExtensionAbility.ets
+++ b/frameworks/native/backup_ext/ani/ets/@ohos.application.BackupExtensionAbility.ets
@@ -21,7 +21,7 @@ export interface BundleVersion {
 
 export class BundleVersionInner implements BundleVersion {
     public code: number;
-    public name: string;
+    public name: string = '';
 }
 
 export default abstract class BackupExtensionAbility {