diff --git a/src/pretix/static/pretixpresale/js/ui/main.js b/src/pretix/static/pretixpresale/js/ui/main.js
index 604dad13e..4543b8bc8 100644
--- a/src/pretix/static/pretixpresale/js/ui/main.js
+++ b/src/pretix/static/pretixpresale/js/ui/main.js
@@ -233,7 +233,7 @@ let form_handlers = function (el) {
 
 function setup_basics (el) {
 	el.find('form').attr('novalidate', true).on('submit', function (e) {
-		if (e.originalEvent.submitter.formNoValidate) return;
+		if (e.originalEvent && e.originalEvent.submitter && e.originalEvent.submitter.formNoValidate) return;
 		if (!this.checkValidity()) {
 			let input = this.querySelector(':invalid:not(fieldset)');
 			(input.labels[0] || input).scrollIntoView()