diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 73e8b0ff..19e6456e 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -1319,11 +1319,12 @@ void Room::UpdateGasInactive()
 
 void Room::UpdateGasInactivePvp()
 {
+    bool over = GetFrameNo() - gas_data_.gas_start_frameno >=
+        GetGasInactiveTime() * SERVER_FRAME_RATE;
     if (IsPvpRankModeRoom()) {
 
     }
-    if (GetFrameNo() - gas_data_.gas_start_frameno >=
-        GetGasInactiveTime() * SERVER_FRAME_RATE) {
+    if (over) {
         long long begin_tick = a8::XGetTickCount();
         gas_data_.SetGasMode(GasJump);
         gas_data_.gas_start_frameno = GetFrameNo();