diff --git a/services/param/watcher/proxy/watcher_manager.cpp b/services/param/watcher/proxy/watcher_manager.cpp
index bca1707afb61d59efed0342f4acf41fe6fce980e..313cd9bf8079513dd071694c1ecaabfac6f7a90e 100755
--- a/services/param/watcher/proxy/watcher_manager.cpp
+++ b/services/param/watcher/proxy/watcher_manager.cpp
@@ -243,10 +243,11 @@ void WatcherManager::RunLoop()
     const int32_t RECV_BUFFER_MAX = 5 * 1024;
     std::vector<char> buffer(RECV_BUFFER_MAX, 0);
     bool retry = false;
+    ssize_t recvLen = 0;
     while (!stop_) {
         int fd = GetServerFd(retry);
         if (fd >= 0) {
-            ssize_t recvLen = recv(fd, buffer.data(), RECV_BUFFER_MAX, 0);
+            recvLen = recv(fd, buffer.data(), RECV_BUFFER_MAX, 0);
         }
         if (stop_) {
             break;