--- a/cms/app-client/config/environment.js	Fri Sep 08 12:04:21 2017 +0200
+++ b/cms/app-client/config/environment.js	Fri Sep 08 15:03:29 2017 +0200
@@ -1,7 +1,7 @@
 /* eslint-env node */
 
 module.exports = function(environment) {
-    var ENV = {
+    let ENV = {
         rootElement: '#corpus-app',
         modulePrefix: 'app-client',
         environment: environment,