diff --git a/services/distributeddataservice/libs/distributeddb/common/src/user_change_monitor.cpp b/services/distributeddataservice/libs/distributeddb/common/src/user_change_monitor.cpp
index 6add9c4d487da452396156e8ab20fcf72e4f4491..469933dabb972c6952a32f3cf8e4269c0f37426d 100644
--- a/services/distributeddataservice/libs/distributeddb/common/src/user_change_monitor.cpp
+++ b/services/distributeddataservice/libs/distributeddb/common/src/user_change_monitor.cpp
@@ -49,7 +49,7 @@ void UserChangeMonitor::Stop()
     if (!isStarted_) {
         return;
     }
-    if (userNotifier_ == nullptr) {
+    if (userNotifier_ != nullptr) {
         userNotifier_->UnRegisterEventType(USER_ACTIVE_EVENT);
         userNotifier_->UnRegisterEventType(USER_NON_ACTIVE_EVENT);
         userNotifier_->UnRegisterEventType(USER_ACTIVE_TO_NON_ACTIVE_EVENT);