diff --git a/src/main.cpp b/src/main.cpp
index 96a1b90..269c105 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -196,7 +196,7 @@ int main()
         std::this_thread::sleep_for(std::chrono::milliseconds(100));
     }
 
-    CloseLed();
+    CloseLed(serial);
     serial.closePort();
     mqtt.disconnect();
     std::cout << "程序已退出。" << std::endl;