diff --git a/assets/javascripts/wizard-custom-guest.js b/assets/javascripts/wizard-custom-guest.js
index 0cd43018..dc2f6430 100644
--- a/assets/javascripts/wizard-custom-guest.js
+++ b/assets/javascripts/wizard-custom-guest.js
@@ -1,4 +1,4 @@
 (function () {
-  document.cookie = `destination_url=${window.location.href};path=/`;
+  document.cookie = 'destination_url=' + window.location.href + ';path=/';
   window.location.href = '/login'
 })()