diff --git a/Engine.Physics2D/RigidBody2D.cs b/Engine.Physics2D/RigidBody2D.cs
index a69e1ca..3b06acf 100644
--- a/Engine.Physics2D/RigidBody2D.cs
+++ b/Engine.Physics2D/RigidBody2D.cs
@@ -8,7 +8,7 @@ public class RigidBody2D : Behaviour2D, IRigidBody2D, IFirstFrameUpdate, ILastFr
 {
     private const float LOWEST_ALLOWED_MASS = 0.00001f;
 
-    public IPhysicsMaterial2D Material { get; set; } = new PhysicsMaterial2D(0f, 0f);
+    public IPhysicsMaterial2D Material { get; set; } = ReadOnlyPhysicsMaterial2D.Default;
 
     public Vector2D Velocity { get; set; } = Vector2D.Zero;
     public float AngularVelocity { get; set; } = 0f;