diff --git a/Gruntfile.js b/Gruntfile.js
index 018cdf266a..b9e1a8ca54 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -319,6 +319,7 @@ module.exports = function (grunt) {
           conservativeCollapse: true,
           minifyCSS: true,
           minifyJS: true,
+          processConditionalComments: true,
           removeAttributeQuotes: true,
           removeComments: true
         },