diff --git a/Engine.Physics2D/Collider2DShapeBehaviour.cs b/Engine.Physics2D/Collider2DShapeBehaviour.cs
index f225ad0..28b9f51 100644
--- a/Engine.Physics2D/Collider2DShapeBehaviour.cs
+++ b/Engine.Physics2D/Collider2DShapeBehaviour.cs
@@ -5,9 +5,10 @@ namespace Syntriax.Engine.Physics2D;
 
 public class Collider2DShapeBehaviour : Collider2DBehaviourBase, IShapeCollider2D
 {
-    public Shape ShapeWorld { get; protected set; } = Shape.Box;
+    public Shape ShapeWorld { get => _shapeWorld; protected set => _shapeWorld = value; }
     public Shape ShapeLocal { get; set; } = Shape.Box;
 
+    private Shape _shapeWorld = Shape.Box;
 
     public override void CalculateCollider() => Transform.TransformShape(ShapeLocal, ref _shapeWorld);