diff --git a/Engine.Core/Vector2D.cs b/Engine.Core/Vector2D.cs
index 4400723..cc3f9e8 100644
--- a/Engine.Core/Vector2D.cs
+++ b/Engine.Core/Vector2D.cs
@@ -39,7 +39,7 @@ public record Vector2D(float X, float Y)
     public static Vector2D FromTo(Vector2D from, Vector2D to) => to - from;
     public static Vector2D Scale(Vector2D vector, Vector2D scale) => new(vector.X * scale.X, vector.Y * scale.Y);
 
-    public static Vector2D Rotate(Vector2D vector, float angleInRadian) => new(MathF.Cos(angleInRadian) * vector.X - MathF.Sin(angleInRadian) * vector.Y, MathF.Sin(angleInRadian) * vector.X + MathF.Cos(radianAngle) * vector.Y);
+    public static Vector2D Rotate(Vector2D vector, float angleInRadian) => new(MathF.Cos(angleInRadian) * vector.X - MathF.Sin(angleInRadian) * vector.Y, MathF.Sin(angleInRadian) * vector.X + MathF.Cos(angleInRadian) * vector.Y);
     public static Vector2D Min(Vector2D left, Vector2D right) => new((left.X < right.X) ? left.X : right.X, (left.Y < right.Y) ? left.Y : right.Y);
     public static Vector2D Max(Vector2D left, Vector2D right) => new((left.X > right.X) ? left.X : right.X, (left.Y > right.Y) ? left.Y : right.Y);
     public static Vector2D Clamp(Vector2D vector, Vector2D min, Vector2D max) => new(Math.Clamp(vector.X, min.X, max.X), Math.Clamp(vector.Y, min.Y, max.Y));