diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/reserve/request.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/reserve/request.tt
index 2140eef611..1fa9952a89 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/reserve/request.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/reserve/request.tt
@@ -20,7 +20,7 @@
 
 <body id="circ_request" class="catalog">
 <script>
-    var select2Width = "100%";
+    $.fn.select2.defaults.set("width", "100%" );
 </script>
 [% INCLUDE 'header.inc' %]
 [% INCLUDE 'circ-search.inc' %]