diff --git a/src/pretix/static/pretixpresale/js/ui/main.js b/src/pretix/static/pretixpresale/js/ui/main.js
index e651f07b91..4400b8357f 100644
--- a/src/pretix/static/pretixpresale/js/ui/main.js
+++ b/src/pretix/static/pretixpresale/js/ui/main.js
@@ -209,7 +209,11 @@ $(function () {
             });
         }
         if (!is_enabled && !$(".has-seating").length) {
-            $("#btn-add-to-cart").prop("disabled", !is_enabled).popover({'content': gettext("Please enter a quantity for one of the ticket types."), 'placement': 'top', 'trigger': 'hover focus'});
+            $("#btn-add-to-cart").prop("disabled", !is_enabled).popover({
+                'content': function () { return gettext("Please enter a quantity for one of the ticket types.") },
+                'placement': 'top',
+                'trigger': 'hover focus'
+            });
         } else {
             $("#btn-add-to-cart").prop("disabled", false).popover("destroy")
         }