diff --git a/services/backup_sa/src/module_ipc/sub_service.cpp b/services/backup_sa/src/module_ipc/sub_service.cpp
index 51a6b972bb88286a258c1bba61553a9b59a01f88..da71f1b8182846aed1d28c9ac2e56fc1e7f523b4 100644
--- a/services/backup_sa/src/module_ipc/sub_service.cpp
+++ b/services/backup_sa/src/module_ipc/sub_service.cpp
@@ -1399,7 +1399,12 @@ ErrCode Service::TryToConnectExt(const std::string& bundleName, sptr<SvcBackupCo
     auto callDied = GetBackupInfoConnectDied(wptr(this), bundleName);
     extConnection->SetCallback(callConnected);
     extConnection->SetCallDied(callDied);
-    AAFwk::Want want = CreateConnectWant(bundleName);
+    AAFwk::Want want;
+    try {
+        want = CreateConnectWant(bundleName);
+    } catch (const BError &e) {
+        return e.GetCode();
+    }
     ErrCode err = extConnection->ConnectBackupExtAbility(want, GetUserIdDefault(), false);
     if (err != BError(BError::Codes::OK)) {
         HILOGE("ConnectBackupExtAbility failed, bundleName:%{public}s, ret:%{public}d", bundleName.c_str(), err);