--- a/common/corpus-common-addon/ember-cli-build.js	Fri Sep 08 12:04:21 2017 +0200
+++ b/common/corpus-common-addon/ember-cli-build.js	Fri Sep 08 15:03:29 2017 +0200
@@ -2,7 +2,7 @@
 const EmberAddon = require('ember-cli/lib/broccoli/ember-addon');
 
 module.exports = function(defaults) {
-  var app = new EmberAddon(defaults, {
+  let app = new EmberAddon(defaults, {
     // Add options here
   });