diff --git a/Geometry/SpriteMesh.cs b/Geometry/SpriteMesh.cs
index 7870333..ee8ccd8 100644
--- a/Geometry/SpriteMesh.cs
+++ b/Geometry/SpriteMesh.cs
@@ -80,19 +80,19 @@ namespace Kav
             }
 
             result[0].Position = new Vector3(-width / 2, height / 2, 0);
-            result[0].Normal = new Vector3(0, 0, 1);
+            result[0].Normal = new Vector3(0, 0, -1);
             result[0].TextureCoordinate = new Vector2(xLeft, yTop);
 
             result[1].Position = new Vector3(width / 2, height / 2, 0);
-            result[1].Normal = new Vector3(0, 0, 1);
+            result[1].Normal = new Vector3(0, 0, -1);
             result[1].TextureCoordinate = new Vector2(xRight, yTop);
 
             result[2].Position = new Vector3(-width / 2, -height / 2, 0);
-            result[2].Normal = new Vector3(0, 0, 1);
+            result[2].Normal = new Vector3(0, 0, -1);
             result[2].TextureCoordinate = new Vector2(xLeft, yBottom);
 
             result[3].Position = new Vector3(width / 2, -height / 2, 0);
-            result[3].Normal = new Vector3(0, 0, 1);
+            result[3].Normal = new Vector3(0, 0, -1);
             result[3].TextureCoordinate = new Vector2(xRight, yBottom);
 
             return result;