diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index b0fc84d..0c17c01 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -85,6 +85,7 @@ void Room::UnInit()
 
 void Room::Update(int delta_time)
 {
+    xtimer.Update();
     if (game_over && frame_no - game_over_frameno > SERVER_FRAME_RATE * 20) {
         return;
     }
@@ -92,7 +93,6 @@ void Room::Update(int delta_time)
     long long begin_tick = a8::XGetTickCount();
     elapsed_time_ += delta_time;
     while (elapsed_time_ >= 50) {
-        xtimer.Update();
         if (frame_no % 2 == 0) {
             UpdateGas();
         }