diff --git a/server/gameserver/collision.cc b/server/gameserver/collision.cc
index f8e211ce..c3257c39 100644
--- a/server/gameserver/collision.cc
+++ b/server/gameserver/collision.cc
@@ -7,6 +7,7 @@
 #include "collision.h"
 #include "creature.h"
 #include "obstacle.h"
+#include "roomobstacle.h"
 
 bool Collision::CheckBullet(IBullet* bullet, Creature* c)
 {
@@ -17,8 +18,11 @@ bool Collision::CheckBullet(IBullet* bullet, Creature* c)
          );
 }
 
-bool Collision::CheckBullet(IBullet* bullet, Entity* c)
+bool Collision::CheckBullet(IBullet* bullet, Entity* e)
 {
+    if (e->IsEntityType(ET_Obstacle) && ((Obstacle*)e)->IsRoomObstacle()) {
+        RoomObstacle* ob = (RoomObstacle*)e;
+    }
     return false;
 }