diff --git a/Engine.Physics2D/Primitives/Shape.cs b/Engine.Physics2D/Primitives/Shape.cs
index dc9e2aa..6b74d49 100644
--- a/Engine.Physics2D/Primitives/Shape.cs
+++ b/Engine.Physics2D/Primitives/Shape.cs
@@ -1,4 +1,3 @@
-using System;
 using System.Collections;
 using System.Collections.Generic;
 
@@ -9,7 +8,7 @@ namespace Syntriax.Engine.Physics2D.Primitives;
 
 public record Shape(IList<Vector2D> Vertices) : IEnumerable<Vector2D>
 {
-    public Vector2D this[Index index] => Vertices[index];
+    public Vector2D this[System.Index index] => Vertices[index];
 
     public static Shape CreateCopy(Shape shape) => new(new List<Vector2D>(shape.Vertices));
 
@@ -20,15 +19,15 @@ public record Shape(IList<Vector2D> Vertices) : IEnumerable<Vector2D>
 
         foreach (Vector2D point in shape.Vertices)
         {
-            minX = MathF.Min(minX, point.X);
-            minY = MathF.Min(minY, point.Y);
-            maxX = MathF.Max(maxX, point.X);
-            maxY = MathF.Max(maxY, point.Y);
+            minX = Math.Min(minX, point.X);
+            minY = Math.Min(minY, point.Y);
+            maxX = Math.Max(maxX, point.X);
+            maxY = Math.Max(maxY, point.Y);
         }
 
         float dx = maxX - minX;
         float dy = maxY - minY;
-        float deltaMax = MathF.Max(dx, dy);
+        float deltaMax = Math.Max(dx, dy);
         float midX = (minX + maxX) / 2;
         float midY = (minY + maxY) / 2;