diff --git a/services/reminder/include/reminder_config_change_observer.h b/services/reminder/include/reminder_config_change_observer.h
index 982b7ddb1fffef61c9ae26bd9daf4fa2ffdc938c..aecceb2a2fd9b00b9aac182c14bf78dc4d81ee9b 100644
--- a/services/reminder/include/reminder_config_change_observer.h
+++ b/services/reminder/include/reminder_config_change_observer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2023-2025 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -31,7 +31,7 @@ public:
     ~ReminderConfigChangeObserver() = default;
 
 public:
-    void OnConfigurationUpdated(const AppExecFwk::Configuration &configuration) override;
+    ErrCode OnConfigurationUpdated(const AppExecFwk::Configuration &configuration) override;
 
 private:
     std::string languageInfo_;
diff --git a/services/reminder/src/reminder_config_change_observer.cpp b/services/reminder/src/reminder_config_change_observer.cpp
index a19712fb0e0b2294cc6261f331f5374abd45c2c5..226f87ea7ee0a87d416c3a7d926688a5bce1b22f 100644
--- a/services/reminder/src/reminder_config_change_observer.cpp
+++ b/services/reminder/src/reminder_config_change_observer.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2023-2025 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -21,13 +21,13 @@
 namespace OHOS {
 namespace Notification {
 
-void ReminderConfigChangeObserver::OnConfigurationUpdated(const AppExecFwk::Configuration &configuration)
+ErrCode ReminderConfigChangeObserver::OnConfigurationUpdated(const AppExecFwk::Configuration &configuration)
 {
     ANSR_LOGD("OnConfigurationUpdated.");
     auto reminderDataMgr = ReminderDataManager::GetInstance();
     if (reminderDataMgr == nullptr) {
         ANSR_LOGE("Reminder data manager is nullptr");
-        return;
+        return ERR_INVALID_VALUE;
     }
     std::string newLanguageInfo = configuration.GetItem(AAFwk::GlobalConfigurationKey::SYSTEM_LANGUAGE);
     if (!newLanguageInfo.empty() && newLanguageInfo != languageInfo_) {
@@ -35,6 +35,7 @@ void ReminderConfigChangeObserver::OnConfigurationUpdated(const AppExecFwk::Conf
         reminderDataMgr->OnLanguageChanged();
         languageInfo_ = newLanguageInfo;
     }
+    return ERR_OK;
 }
 
 } // namespace Notification