diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 073d150..21e2fa9 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -3949,6 +3949,7 @@ void Room::AirRaid(int airraid_id)
                       pos.x,
                       pos.y
                       );
+                 obstacle->Active();
                  if (obstacle) {
                  }
                  #if 1
diff --git a/server/gameserver/roomobstacle.cc b/server/gameserver/roomobstacle.cc
index bd30797..baca6a5 100644
--- a/server/gameserver/roomobstacle.cc
+++ b/server/gameserver/roomobstacle.cc
@@ -283,21 +283,29 @@ void RoomObstacle::SpecExplosion()
         bomb_born_offset = bomb_born_offset * a8::RandEx(1, std::max(2, meta->i->explosion_float()));
         a8::Vec2 bomb_pos = GetPos() + bomb_born_offset;
         std::set<Entity*> objects;
+        Creature* dumy_c = nullptr;
         room->grid_service->TraverseAllLayerHumanList
             (
              room->GetRoomIdx(),
              *grid_list_,
-             [this, &objects, &bomb_pos] (Human* hum, bool& stop)
+             [this, &objects, &bomb_pos, &dumy_c] (Human* hum, bool& stop)
              {
+                 if (!dumy_c) {
+                     dumy_c = hum;
+                 }
                  float distance = (hum->GetPos() - bomb_pos).Norm();
-                 if (master.Get()->team_id != hum->team_id && distance < meta->i->damage_dia()) {
-                    objects.insert(hum);
+                 if ((!master.Get() || master.Get()->team_id != hum->team_id) &&
+                     distance < meta->i->damage_dia()) {
+                     dumy_c = hum;
+                     objects.insert(hum);
                 }
              });
-        room->frame_event.AddExplosionEx(master,
-                                         meta->i->thing_id(),
-                                         bomb_pos,
-                                         meta->i->explosion_effect());
+        if (dumy_c) {
+            room->frame_event.AddExplosionEx(dumy_c->GetWeakPtrRef(),
+                                             meta->i->thing_id(),
+                                             bomb_pos,
+                                             meta->i->explosion_effect());
+        }
         for (auto& target : objects) {
             switch (target->GetEntityType()) {
             case ET_Player: