diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/serials/subscription-detail.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/serials/subscription-detail.tt
index 38ce2cc818..f58f4f1a75 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/serials/subscription-detail.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/serials/subscription-detail.tt
@@ -455,7 +455,7 @@
         $(document).ready(function() {
 
             $("#renewsub").click(function(){
-                popup([% subscriptionid | html %]);
+                popup("[% subscriptionid | html %]");
                 return false;
             })