diff --git a/server/gameserver/obstacle.cc b/server/gameserver/obstacle.cc
index f1a86d8..3b9cae6 100644
--- a/server/gameserver/obstacle.cc
+++ b/server/gameserver/obstacle.cc
@@ -129,7 +129,21 @@ ColliderComponent* Obstacle::GetBoxBound()
 
 void Obstacle::GetAabbBox(AabbCollider& aabb_box)
 {
-
+    if (self_collider2_) {
+        aabb_box = *self_collider2_;
+        return;
+    }
+    if (self_collider_) {
+        aabb_box.active = true;
+        aabb_box.owner = this;
+        aabb_box._min.x = -self_collider_->rad;
+        aabb_box._min.y = -self_collider_->rad;
+        aabb_box._max.x = self_collider_->rad;
+        aabb_box._max.y = self_collider_->rad;
+        return;
+    }
+    aabb_box.active = true;
+    aabb_box.owner = this;
 }
 
 void Obstacle::GetCircleBox(CircleCollider& circle_box)