diff --git a/client/daemon/rpcserver/rpcserver.go b/client/daemon/rpcserver/rpcserver.go
index d33dc2258..d6c0d48c2 100644
--- a/client/daemon/rpcserver/rpcserver.go
+++ b/client/daemon/rpcserver/rpcserver.go
@@ -152,6 +152,7 @@ func (s *server) OnNotify(data *config.DynconfigData) {
 	}
 }
 
+// stop peer server and download server
 func (s *server) Stop() {
 	s.peerServer.GracefulStop()
 	s.downloadServer.GracefulStop()