diff --git a/cpp/protoutils.cc b/cpp/protoutils.cc
index f9c8ce2..2bb059c 100644
--- a/cpp/protoutils.cc
+++ b/cpp/protoutils.cc
@@ -3,7 +3,7 @@
 #include "framework/cpp/protoutils.h"
 
 #include <a8/tcpclient.h>
-#include <a8/tcpclient2.h>
+#include <a8/asynctcpclient.h>
 #include <a8/tcplistener.h>
 
 #include <google/protobuf/message.h>
@@ -132,7 +132,7 @@ namespace f8
         return sizeof(f8::PackHeadOld) + packlen;
     }
 
-    int Net_SendMsg(a8::TcpClient2* tcp_client, unsigned seqid, unsigned short msgid,
+    int Net_SendMsg(a8::AsyncTcpClient* tcp_client, unsigned seqid, unsigned short msgid,
                     ::google::protobuf::Message& msg)
     {
         int packlen = msg.ByteSize();
diff --git a/cpp/protoutils.h b/cpp/protoutils.h
index 170c17f..aaa75f4 100644
--- a/cpp/protoutils.h
+++ b/cpp/protoutils.h
@@ -12,7 +12,7 @@ namespace google
 namespace a8
 {
     class TcpClient;
-    class TcpClient2;
+    class AsyncTcpClient;
     class TcpListener;
 }
 
@@ -110,7 +110,7 @@ namespace f8
                     unsigned short msgid, ::google::protobuf::Message& msg);
     int Net_SendMsgOld(a8::TcpClient* tcp_client, unsigned int seqid,
                        unsigned short msgid, ::google::protobuf::Message& msg);
-    int Net_SendMsg(a8::TcpClient2* tcp_client, unsigned int seqid,
+    int Net_SendMsg(a8::AsyncTcpClient* tcp_client, unsigned int seqid,
                     unsigned short msgid, ::google::protobuf::Message& msg);
     int Net_SendBigMsg(a8::TcpClient* tcp_client, unsigned int seqid,
                        unsigned short msgid, ::google::protobuf::Message& msg);