diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 024df7e..5185e25 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -83,6 +83,10 @@ void Room::UnInit()
 
 void Room::Update(int delta_time)
 {
+    if (game_over && frame_no - game_over_frameno > SERVER_FRAME_RATE * 20) {
+        return;
+    }
+
     long long begin_tick = a8::XGetTickCount();
     elapsed_time_ += delta_time;
     while (elapsed_time_ >= 50) {