diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index a25117c..f05e139 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -1045,9 +1045,7 @@ void Room::UpdateGasMoving()
                     gas_data.pos_old = gas_data.pos_old_bk + dir * distance;
                 }
                 if (gas_data.rad_old - distance <= gas_data.rad_new) {
-#if 0
                     assert(gas_data.pos_new == gas_data.pos_old);
-#endif
                 }
             }
             if (std::abs(gas_data.gas_progress - gas_data.rad_new) <= 0.001f) {