diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/virtualshelves/sendshelf.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/virtualshelves/sendshelf.tt
index 5ee9a72f06..b0c4fb8878 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/virtualshelves/sendshelf.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/virtualshelves/sendshelf.tt
@@ -57,7 +57,7 @@ Your list: [% shelfname | $raw %]
             </span><br/>
             [% END %]
 
-            [% IF ( BIBLIO_RESULT.ISBN ) %]
+            [% IF ( BIBLIO_RESULT.ISBN.size > 0 ) %]
             <span>
                 ISBN: [% FOREACH isbn IN BIBLIO_RESULT.ISBN %]
                           [% isbn | $raw %]