diff --git a/src/host/client.cpp b/src/host/client.cpp
index 4cf0db854dae8132263f1701e981d62c25d6df33..915cc6fafb483d149961f0b846070785768f1e9d 100755
--- a/src/host/client.cpp
+++ b/src/host/client.cpp
@@ -20,6 +20,7 @@
 #include "server.h"
 #include "file.h"
 
+/* global variable */
 std::map<std::string, std::string> g_lists;
 bool g_show = true;