diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/includes/shelfbrowser.inc b/koha-tmpl/opac-tmpl/bootstrap/en/includes/shelfbrowser.inc
index 78c6139142..d382a193c8 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/includes/shelfbrowser.inc
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/includes/shelfbrowser.inc
@@ -29,7 +29,7 @@
                             [% END %]
 
                             [% IF ( OPACLocalCoverImages || OPACAmazonCoverImages || ( SyndeticsEnabled && SyndeticsCoverImages ) || GoogleJackets || BakerTaylorEnabled || ( Koha.Preference('OpacCoce') && Koha.Preference('CoceProviders') ) || ( Koha.Preference('OPACCustomCoverImages') AND Koha.Preference('CustomCoverImagesURL') ) ) %]
-                                <a class="shelfbrowser_cover" href="/cgi-bin/koha/opac-detail.pl?biblionumber=[% item.biblionumber | uri %]&amp;shelfbrowse_itemnumber=[% item.itemnumber | uri %]#shelfbrowser">
+                                <a class="shelfbrowser_cover" href="/cgi-bin/koha/opac-detail.pl?biblionumber=[% item.biblionumber | uri %]&amp;shelfbrowse_itemnumber=[% item.itemnumber | uri %]#shelfbrowser" data-isbn="[% item.browser_normalized_isbn | html%]">
                                     [% IF ( OPACLocalCoverImages ) %]
                                         <div title="[% img_title | html %]" class="[% item.biblionumber | html %] thumbnail-shelfbrowser" id="local-thumbnail-shelf-[% item.biblionumber | html %]"></div>
                                     [% END %]