diff --git a/Engine.Physics2D/Collider2DBehaviourBase.cs b/Engine.Physics2D/Collider2DBehaviourBase.cs
index e69096f..3912812 100644
--- a/Engine.Physics2D/Collider2DBehaviourBase.cs
+++ b/Engine.Physics2D/Collider2DBehaviourBase.cs
@@ -37,7 +37,7 @@ public abstract class Collider2DBehaviourBase : BehaviourOverride, ICollider2D
 
     protected override void OnInitialize()
     {
-        BehaviourController.TryGetBehaviour(out _rigidBody2D);
+        BehaviourController.TryGetBehaviourInParent(out _rigidBody2D);
 
         BehaviourController.OnBehaviourAdded += OnBehaviourAddedToController;
         BehaviourController.OnBehaviourRemoved += OnBehaviourRemovedFromController;
@@ -45,6 +45,12 @@ public abstract class Collider2DBehaviourBase : BehaviourOverride, ICollider2D
         Transform.OnPositionChanged += SetNeedsRecalculation;
         Transform.OnRotationChanged += SetNeedsRecalculation;
         Transform.OnScaleChanged += SetNeedsRecalculation;
+        Transform.OnParentChanged += UpdateRigidBody2D;
+    }
+
+    private void UpdateRigidBody2D(ITransform _1, ITransform? _2)
+    {
+        BehaviourController.TryGetBehaviourInParent(out _rigidBody2D);
     }
 
     private void OnBehaviourAddedToController(IBehaviourController _, IBehaviour behaviour)