diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/additem.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/additem.tt
index f504962d6f..3edfcd6a15 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/additem.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/additem.tt
@@ -131,7 +131,7 @@
                                 [% END %]
                             [% END %]
                             [% IF can_be_edited %]
-                                [% tr_class.push = 'editable' %]
+                                [% tr_class.push('editable') %]
                             [% END %]
                             <tr id="row[% item.itemnumber | html %]" class="[% tr_class.join(' ') | html %]" title="[% tr_title | html %]">
                                 [% UNLESS can_be_edited %]