diff --git a/server/wsproxy/app.cc b/server/wsproxy/app.cc
index 8da030e..99f1593 100644
--- a/server/wsproxy/app.cc
+++ b/server/wsproxy/app.cc
@@ -450,7 +450,10 @@ void App::ProcessTargetServerMsg(f8::MsgHdr& hdr)
         DownStreamMgr::Instance()->BindUpStream(hdr.socket_handle, hdr.ip_saddr);
         GCListener::Instance()->MarkClient(hdr.socket_handle, true);
     }
-    GCListener::Instance()->ForwardUpStreamMsg(hdr);
+    auto down = DownStreamMgr::Instance()->GetDownStream(hdr.socket_handle);
+    if (!down.expired()) {
+        down.lock()->ForwardUpStreamMsg(hdr);
+    }
 }
 
 void App::InitLog()