diff --git a/cocos/scripting/lua-bindings/manual/network/lua_xml_http_request.cpp b/cocos/scripting/lua-bindings/manual/network/lua_xml_http_request.cpp
index f1b1b71dc7..c15bfdfc1a 100644
--- a/cocos/scripting/lua-bindings/manual/network/lua_xml_http_request.cpp
+++ b/cocos/scripting/lua-bindings/manual/network/lua_xml_http_request.cpp
@@ -262,23 +262,7 @@ void LuaMinXmlHttpRequest::_setHttpRequestHeader()
     
     for (auto it = _requestHeader.begin(); it != _requestHeader.end(); ++it)
     {
-        const char* first = it->first.c_str();
-        const char* second = it->second.c_str();
-        size_t len = sizeof(char) * (strlen(first) + 3 + strlen(second));
-        char* test = (char*) malloc(len);
-        if (test != nullptr) //should check failure of malloc or it could be an undefined behaviour
-        {
-            memset(test, 0,len);
-        
-            strcpy(test, first);
-            strcpy(test + strlen(first) , ": ");
-            strcpy(test + strlen(first) + 2, second);
-        
-            header.push_back(test);
-        
-            free(test);
-        }
-        
+        header.push_back(it->first + ": " + it->second);
     }
     
     if (!header.empty())