diff --git a/pfwb_thesaurus/templates/thesaurus/plone_popup.html b/pfwb_thesaurus/templates/thesaurus/plone_popup.html
index 5676a61..80cc745 100644
--- a/pfwb_thesaurus/templates/thesaurus/plone_popup.html
+++ b/pfwb_thesaurus/templates/thesaurus/plone_popup.html
@@ -16,10 +16,10 @@ function thesaurus_popup_init() {
           var orig_link = $('a[rel=#' + $(this).parents('.overlay-ajax').attr('id') + ']');
           var orig_input = $(orig_link).parent().find('input')[0];
           var orig_ac_input = $(orig_link).parent().find('input')[1];
-          $(orig_input).val($(orig_input).val() + ' ' + $(this).data('term-id'));
+          $(orig_input).val($(orig_input).val() + ' ' + $(this).attr('data-term-id'));
           var labelbox = create_labelbox(
                          orig_ac_input,
-                         $(this).data('term-id'),
+                         $(this).attr('data-term-id'),
                           $(this).parent().find('h2').text());
           $(orig_link).before(labelbox);
           $('.close').click();