diff --git a/src/pretix/static/pretixcontrol/js/ui/main.js b/src/pretix/static/pretixcontrol/js/ui/main.js
index 3f371694e..7ac5db7dc 100644
--- a/src/pretix/static/pretixcontrol/js/ui/main.js
+++ b/src/pretix/static/pretixcontrol/js/ui/main.js
@@ -594,7 +594,7 @@ var form_handlers = function (el) {
                     }
                 }
             },
-            placeholder: $(this).attr("data-placeholder") | "",
+            placeholder: $(this).attr("data-placeholder") || "",
             templateResult: function (res) {
                 if (!res.id) {
                     return res.text;