diff --git a/frameworks/test/moduletest/mock/mock_bundle_manager_helper.cpp b/frameworks/test/moduletest/mock/mock_bundle_manager_helper.cpp
index daba3e9c449a6a08ac8401f2118ef34533337f78..80609a098ce58685710f404b77d52614d26334c0 100644
--- a/frameworks/test/moduletest/mock/mock_bundle_manager_helper.cpp
+++ b/frameworks/test/moduletest/mock/mock_bundle_manager_helper.cpp
@@ -21,8 +21,9 @@
 
 namespace OHOS {
 namespace Notification {
-
-const int32_t defaultUserId = 1000;
+namespace {
+    const int32_t DEFAULT_USERID = 1000;
+}
 
 BundleManagerHelper::BundleManagerHelper()
 {}
@@ -45,7 +46,7 @@ bool BundleManagerHelper::IsSystemApp(int uid)
 
 int BundleManagerHelper::GetDefaultUidByBundleName(const std::string &bundle, const int32_t userId)
 {
-    return defaultUserId;
+    return DEFAULT_USERID;
 }
 
 bool BundleManagerHelper::GetBundleInfoByBundleName(