diff --git a/server/gameserver/app.cc b/server/gameserver/app.cc
index 4763fdb9..0d1b1b7f 100644
--- a/server/gameserver/app.cc
+++ b/server/gameserver/app.cc
@@ -176,7 +176,7 @@ bool App::Init(int argc, char* argv[])
     mt::MetaMgr::Instance()->Init();
     SelfChecker::Init();
     EntityFactory::Instance()->Init();
-    uuid.SetMachineId((node_id - 1) * MAX_NODE_ID + instance_id);
+    uuid_.SetMachineId((node_id - 1) * MAX_NODE_ID + instance_id);
     KillMgr::Instance()->Init();
     RoomMgr::Instance()->Init();
     MatchMgr::Instance()->Init();
@@ -498,7 +498,7 @@ bool App::ParseOpt()
 
 long long App::NewUuid()
 {
-    return uuid.Generate();
+    return uuid_.Generate();
 }
 
 bool App::HasFlag(int flag)
diff --git a/server/gameserver/app.h b/server/gameserver/app.h
index ebde2f22..53839b4a 100644
--- a/server/gameserver/app.h
+++ b/server/gameserver/app.h
@@ -59,7 +59,6 @@ public:
     int argc = 0;
     char** argv = nullptr;
     volatile bool terminated = false;
-    a8::uuid::SnowFlake uuid;
 
 public:
     int instance_id = 0;
@@ -82,6 +81,8 @@ private:
     std::set<int> flags;
 
 private:
+    a8::uuid::SnowFlake uuid_;
+
     long long last_run_tick_ = 0;
     std::mutex *loop_mutex_ = nullptr;
     std::condition_variable *loop_cond_ = nullptr;