diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index aa8387c..1d7a30a 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -3914,7 +3914,8 @@ void Room::AirRaid(int airraid_id)
     }
     a8::Vec2 dir = a8::Vec2::UP;
     dir.Rotate(a8::RandAngle());
-    a8::Vec2 center = gas_data_.pos_new + dir * (100 + rand() % gas_data_.new_area_meta->i->rad());
+    float rnd_rad = gas_data_.new_area_meta->i->rad() > 0 ? rand() % gas_data_.new_area_meta->i->rad() : 0;
+    a8::Vec2 center = gas_data_.pos_new + dir * (100 + rnd_rad);
     {
         std::vector<Player*> humans;
         GetAlivePlayers(humans, GetRoomMaxPlayerNum());