diff --git a/server/wsproxy/app.cc b/server/wsproxy/app.cc
index 6a61201..d190cad 100644
--- a/server/wsproxy/app.cc
+++ b/server/wsproxy/app.cc
@@ -335,7 +335,9 @@ void App::ProcessClientMsg(MsgHdr& hdr)
         }
     } else {
         GameClient* client = GameClientMgr::Instance()->GetGameClientBySocket(hdr.socket_handle);
-        conn = client->conn;
+        if (client) {
+            conn = client->conn;
+        }
     }
     if (conn) {
         conn->ForwardClientMsg(hdr);