diff --git a/demo-shell-ng2/config/webpack.common.js b/demo-shell-ng2/config/webpack.common.js
index 21c6fc688b..fb5bc51860 100644
--- a/demo-shell-ng2/config/webpack.common.js
+++ b/demo-shell-ng2/config/webpack.common.js
@@ -9,13 +9,13 @@ var CopyWebpackPlugin = require('copy-webpack-plugin');
 
 const rootPath = helpers.root('node_modules');
 
-let pattern = '+(alfresco-js-api|ng2-alfresco|ng2-activiti)*';
-let options = {
+var pattern = '+(alfresco-js-api|ng2-alfresco|ng2-activiti)*';
+var options = {
     cwd: rootPath,
     realpath: true
 };
 
-let alfrescoLibs = glob.sync(pattern, options);
+var alfrescoLibs = glob.sync(pattern, options);
 // console.dir(alfrescoLibs);
 
 module.exports = {
diff --git a/demo-shell-ng2/config/webpack.test.js b/demo-shell-ng2/config/webpack.test.js
index f2fe2870e0..c9bcd38d21 100644
--- a/demo-shell-ng2/config/webpack.test.js
+++ b/demo-shell-ng2/config/webpack.test.js
@@ -4,13 +4,13 @@ var glob = require('glob');
 
 const rootPath = helpers.root('node_modules');
 
-let pattern = '+(alfresco-js-api|ng2-alfresco|ng2-activiti)*';
-let options = {
+var pattern = '+(alfresco-js-api|ng2-alfresco|ng2-activiti)*';
+var options = {
     cwd: rootPath,
     realpath: true
 };
 
-let alfrescoLibs = glob.sync(pattern, options);
+var alfrescoLibs = glob.sync(pattern, options);
 
 module.exports = {
   devtool: 'inline-source-map',