diff --git a/Gruntfile.js b/Gruntfile.js
index b9aba806..92c9a204 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -216,7 +216,7 @@ module.exports = function(grunt) {
 
     compress: {
       build: {
-        options: {archive: 'build/' + dist +'.zip'},
+        options: {archive: 'build/' + dist +'.zip', mode: 'zip'},
         src: ['**'], cwd: 'build', expand: true, dot: true, dest: dist + '/'
       }
     },