diff --git a/src/pixi/core/Matrix.js b/src/pixi/core/Matrix.js
index df1fd07..cc4ebe2 100644
--- a/src/pixi/core/Matrix.js
+++ b/src/pixi/core/Matrix.js
@@ -6,7 +6,7 @@
  * The Matrix class is now an object, which makes it a lot faster, 
  * here is a representation of it : 
  * | a | b | tx|
- * | c | c | ty|
+ * | c | d | ty|
  * | 0 | 0 | 1 |
  *
  * @class Matrix