diff --git a/fonts.js b/fonts.js
index d8b36ecdb..31a5e1fac 100644
--- a/fonts.js
+++ b/fonts.js
@@ -1117,6 +1117,8 @@ var Font = (function () {
       var rule = "@font-face { font-family:'" + fontName + "';src:" + url + "}";
       var styleSheet = document.styleSheets[0];
       styleSheet.insertRule(rule, styleSheet.cssRules.length);
+
+      return rule;
     }
   };