diff --git a/etcdserver/api/v3rpc/grpc.go b/etcdserver/api/v3rpc/grpc.go
index 88174e3bac24..f93a44626c97 100644
--- a/etcdserver/api/v3rpc/grpc.go
+++ b/etcdserver/api/v3rpc/grpc.go
@@ -36,7 +36,7 @@ func Server(s *etcdserver.EtcdServer, tls *tls.Config) *grpc.Server {
 	}
 	opts = append(opts, grpc.UnaryInterceptor(newUnaryInterceptor(s)))
 	opts = append(opts, grpc.StreamInterceptor(newStreamInterceptor(s)))
-
+	opts = append(opts, grpc.MaxMsgSize(int(s.Cfg.MaxRequestBytes)))
 	grpcServer := grpc.NewServer(opts...)
 	pb.RegisterKVServer(grpcServer, NewQuotaKVServer(s))
 	pb.RegisterWatchServer(grpcServer, NewWatchServer(s))