diff --git a/Engine.Core/Primitives/Shape2D.cs b/Engine.Core/Primitives/Shape2D.cs
index 7a72dd0..4a8ba84 100644
--- a/Engine.Core/Primitives/Shape2D.cs
+++ b/Engine.Core/Primitives/Shape2D.cs
@@ -122,7 +122,7 @@ public class Shape2D(List<Vector2D> vertices) : IEnumerable<Vector2D>
         triangles.Clear();
 
         for (int i = 2; i < shape.Vertices.Count; i++)
-            triangles.Add(new Triangle(shape[0], shape[i - 1], shape[i]));
+            triangles.Add(new Triangle(shape[0], shape[i], shape[i - 1]));
     }
 
     /// <summary>