diff --git a/src/core/utils/index.js b/src/core/utils/index.js
index da6c73d..8fa3e2f 100644
--- a/src/core/utils/index.js
+++ b/src/core/utils/index.js
@@ -144,7 +144,7 @@
      */
     getResolutionOfUrl: function (url)
     {
-        var resolution = PIXI.RETINA_PREFIX.exec(url);
+        var resolution = CONST.RETINA_PREFIX.exec(url);
 
         if (resolution)
         {