diff --git a/grunt/bs-raw-files-generator.js b/grunt/bs-raw-files-generator.js
index 7637da9429..ec8c5314e7 100644
--- a/grunt/bs-raw-files-generator.js
+++ b/grunt/bs-raw-files-generator.js
@@ -10,16 +10,19 @@
 'use strict';
 var fs = require('fs');
 var btoa = require('btoa');
+var glob = require('glob');
 
 function getFiles(type) {
   var files = {};
-  fs.readdirSync(type)
+  var recursive = (type === 'less');
+  var globExpr = (recursive ? '/**/*' : '/*');
+  glob.sync(type + globExpr)
     .filter(function (path) {
       return type === 'fonts' ? true : new RegExp('\\.' + type + '$').test(path);
     })
-    .forEach(function (path) {
-      var fullPath = type + '/' + path;
-      files[path] = (type === 'fonts' ? btoa(fs.readFileSync(fullPath)) : fs.readFileSync(fullPath, 'utf8'));
+    .forEach(function (fullPath) {
+      var relativePath = fullPath.replace(/^[^/]+\//, '');
+      files[relativePath] = (type === 'fonts' ? btoa(fs.readFileSync(fullPath)) : fs.readFileSync(fullPath, 'utf8'));
     });
   return 'var __' + type + ' = ' + JSON.stringify(files) + '\n';
 }
@@ -28,7 +31,10 @@ module.exports = function generateRawFilesJs(grunt, banner) {
   if (!banner) {
     banner = '';
   }
-  var files = banner + getFiles('js') + getFiles('less') + getFiles('fonts');
+  var dirs = ['js', 'less', 'fonts'];
+  var files = banner + dirs.map(getFiles).reduce(function (combined, file) {
+    return combined + file;
+  }, '');
   var rawFilesJs = 'docs/assets/js/raw-files.min.js';
   try {
     fs.writeFileSync(rawFilesJs, files);
diff --git a/package.json b/package.json
index f11a633349..afae79aa12 100644
--- a/package.json
+++ b/package.json
@@ -32,6 +32,7 @@
   "devDependencies": {
     "btoa": "~1.1.1",
     "canonical-json": "~0.0.4",
+    "glob": "^3.2.9",
     "grunt": "~0.4.4",
     "grunt-autoprefixer": "~0.7.2",
     "grunt-banner": "~0.2.2",