diff --git a/Gruntfile.js b/Gruntfile.js
index 0c5091f3a1..fc6868be32 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -284,7 +284,7 @@ module.exports = function (grunt) {
         compatibility: 'ie9',
         keepSpecialComments: '*',
         sourceMap: true,
-        noAdvanced: true
+        advanced: false
       },
       core: {
         files: [