diff --git a/services/src/ime_event_listener_manager.cpp b/services/src/ime_event_listener_manager.cpp
index 636b11390e0b0a6afb28804728d07fbbae3235cb..760562249206376277136c8a03727a02a4687796 100644
--- a/services/src/ime_event_listener_manager.cpp
+++ b/services/src/ime_event_listener_manager.cpp
@@ -116,11 +116,12 @@ void ImeEventListenerManager::OnListenerDied(int32_t userId, const wptr<IRemoteO
     if (object == nullptr) {
         return;
     }
+    std::lock_guard<std::mutex> lock(imeEventListenersLock_);
     auto it = imeEventListeners_.find(userId);
     if (it == imeEventListeners_.end()) {
         return;
     }
-    auto listererInfos = it->second;
+    auto &listererInfos = it->second;
     auto iter = std::find_if(listererInfos.begin(), listererInfos.end(),
         [&object](const ImeEventListenerInfo &info) {
             return (info.client != nullptr && info.client->AsObject() == object);