diff --git a/src/main.cpp b/src/main.cpp
index 36c3393..a1fcece 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -12,8 +12,7 @@ std::atomic<bool> g_running(true);
 void signalHandler(int)
 {
     g_running = false;
-    RTSPManager::stop();       // 停止 RTSP loop
-    MQTTClientWrapper::stop(); // 停止 MQTT loop
+    RTSPManager::stop(); // 停止 RTSP loop
 }
 
 int main()