diff --git a/Gruntfile.js b/Gruntfile.js
index 3cf90041..348d0431 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -110,6 +110,7 @@ module.exports = function(grunt) {
         '!js/register.js'
       ],
       res: [
+        'audio/**',
         'images/**',
         'fonts/*',
       ]