diff --git a/frameworks/native/backup_ext/src/ext_extension.cpp b/frameworks/native/backup_ext/src/ext_extension.cpp
index ec7f43d1432fceb2933666de7b25aa4be068be67..e7c3d19e8c2887e76c0f6a13ee42170b77b6ab73 100644
--- a/frameworks/native/backup_ext/src/ext_extension.cpp
+++ b/frameworks/native/backup_ext/src/ext_extension.cpp
@@ -1067,9 +1067,11 @@ void BackupExtExtension::AsyncTaskBackup(const string config)
             ptr->DoBackUpTask(config);
         } catch (const BError &e) {
             HILOGE("extension: AsyncTaskBackup error, err code:%{public}d", e.GetCode());
+            ScanFileSingleton::GetInstance().SetCompeletedFlag(false);
             ptr->AppDone(e.GetCode());
         } catch (...) {
             HILOGE("Failed to restore the ext bundle");
+            ScanFileSingleton::GetInstance().SetCompeletedFlag(false);
             ptr->AppDone(BError(BError::Codes::EXT_INVAL_ARG).GetCode());
         }
         ptr->DoClear();
diff --git a/frameworks/native/backup_ext/src/sub_ext_extension.cpp b/frameworks/native/backup_ext/src/sub_ext_extension.cpp
index fb11fea1bfe36231e5afd6cd5aab5da1ea8061b2..249800ac1ebcbc503c62f413b2bc0d0535ca3516 100644
--- a/frameworks/native/backup_ext/src/sub_ext_extension.cpp
+++ b/frameworks/native/backup_ext/src/sub_ext_extension.cpp
@@ -1615,6 +1615,7 @@ void BackupExtExtension::DoBackUpTask(const string &config)
 
     ret = DoBackup(bigFileInfo, fileBackupedInfo, smallFiles, includeSize, excludeSize);
     DoBackupEnd();
+    ScanFileSingleton::GetInstance().SetCompeletedFlag(false);
     AppDone(ret);
     HILOGI("backup app done %{public}d", ret);
 }