diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 5458b1e..9879ce1 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -3664,6 +3664,7 @@ void Room::ForwardGasRing(int n)
             gas_data_.is_last_gas = true;
             return;
         }
+        gas_data_.gas_mode = GasWaiting;
         a8::Vec2 pre_pos = gas_data_.pos_new;
         gas_data_.old_area_meta = MetaMgr::Instance()->GetSafeArea(pre_area_id);
         gas_data_.new_area_meta = MetaMgr::Instance()->GetSafeArea(pre_area_id + 1);