diff --git a/src/extras/cacheAsBitmap.js b/src/extras/cacheAsBitmap.js
index f639c55..43c73f5 100644
--- a/src/extras/cacheAsBitmap.js
+++ b/src/extras/cacheAsBitmap.js
@@ -253,7 +253,7 @@
 {
     this._cachedSprite._currentBounds = null;
 
-    return this._cachedSprite.getBounds(core.math.Matrix.IDENTITY);
+    return this._cachedSprite.getBounds(core.Matrix.IDENTITY);
 };
 
 /**