diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/detail.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/detail.tt
index 2d7c7a1535..05e83a534e 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/detail.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/detail.tt
@@ -1505,7 +1505,7 @@
                                 // Remove the container
                                 div.remove();
                             } else {
-                                lightbox_descriptions.push("Custom cover image");
+                                lightbox_descriptions.push( _("Custom cover image") );
                             }
                         } else if ( div.attr("id") == "syndetics-bookcoverimg" ){
                                 lightbox_descriptions.push(_("Syndetics cover image (<a href='%s'>see the original image</a>)").format($(img).data('link')));
@@ -1514,7 +1514,7 @@
                             // Identify which service's image is being loaded by Coce
                             var coce_description;
                             if( $(img).attr("src").indexOf('amazon.com') >= 0 ){
-                                coce_description = ("Coce image from Amazon.com");
+                                coce_description = _("Coce image from Amazon.com");
                             } else if( $(img).attr("src").indexOf('google.com') >= 0 ){
                                 coce_description = _("Coce image from Google Books");
                             } else if( $(img).attr("src").indexOf('openlibrary.org') >= 0 ){