diff --git a/cpp/protoutils.cc b/cpp/protoutils.cc
index 6c0cc3d..3d10333 100644
--- a/cpp/protoutils.cc
+++ b/cpp/protoutils.cc
@@ -341,5 +341,12 @@ namespace f8
         free(buff);
         return sizeof(WSProxyPackHead_S) + packlen;
     }
+
+    int Net_SendProxyMsg(a8::TcpListener* tcp_tlistener, int socket_handle,
+                         unsigned int seqid, unsigned short error_code,
+                         unsigned short msgid, const std::string& data)
+    {
+        
+    }
 }
 
diff --git a/cpp/protoutils.h b/cpp/protoutils.h
index dab421c..bd025cc 100644
--- a/cpp/protoutils.h
+++ b/cpp/protoutils.h
@@ -136,4 +136,8 @@ namespace f8
     int Net_SendProxyMsg(a8::TcpListener* tcp_tlistener, int socket_handle,
                          unsigned int seqid, unsigned short error_code,
                          unsigned short msgid, ::google::protobuf::Message& msg);
+    int Net_SendProxyMsg(a8::TcpListener* tcp_tlistener, int socket_handle,
+                         unsigned int seqid, unsigned short error_code,
+                         unsigned short msgid, const std::string& data);
+
 }