diff --git a/server/gameserver/matchpool.h b/server/gameserver/matchpool.h
index ae7c5a74..5c57f6f4 100644
--- a/server/gameserver/matchpool.h
+++ b/server/gameserver/matchpool.h
@@ -13,8 +13,6 @@ class MatchPool : public a8::Singleton<MatchPool>
     friend class a8::Singleton<MatchPool>;
 
 public:
-    a8::TimerAttacher timer_attacher;
-
     void Init();
     void UnInit();
 
@@ -31,6 +29,7 @@ private:
     void RemoveSocket(int socket_handle);
 
 private:
+    a8::TimerAttacher timer_attacher_;
     std::map<std::string, MatchTeam*> team_hash_;
     std::map<int, std::tuple<std::string, MatchTeam*>> socket_hash_;
 };