diff --git a/server/wsproxy/target_conn.cc b/server/wsproxy/target_conn.cc
index 12d47bd..b910379 100644
--- a/server/wsproxy/target_conn.cc
+++ b/server/wsproxy/target_conn.cc
@@ -144,7 +144,12 @@ void TargetConn::ForwardClientMsgEx(f8::MsgHdr* hdr)
 
 void TargetConn::on_error(a8::TcpClient* sender, int errorId)
 {
-    a8::UdpLog::Instance()->Error("TargetConn errorid=%d", {errorId});
+    a8::UdpLog::Instance()->Error("TargetConn errorid=%d remote_ip:%s remote_port:%d",
+                                  {
+                                   errorId,
+                                   sender->remote_address,
+                                   sender->remote_port
+                                  });
 }
 
 void TargetConn::on_connect(a8::TcpClient* sender)