diff --git a/grunt/bs-commonjs-generator.js b/grunt/bs-commonjs-generator.js
index 402a7b7429..af85f47721 100644
--- a/grunt/bs-commonjs-generator.js
+++ b/grunt/bs-commonjs-generator.js
@@ -16,7 +16,7 @@ module.exports = function generateCommonJSModule(grunt, srcFiles, destFilepath)
   var destDir = path.dirname(destFilepath);
 
   function srcPathToDestRequire(srcFilepath) {
-    return 'require(\'' + srcFilepath + '\')';
+    return 'require(\'' + srcFilepath.replace(/\\/g, '/') + '\')';
   }
 
   var moduleOutputJs = COMMONJS_BANNER + srcFiles.map(srcPathToDestRequire).join('\n');