diff --git a/src/ipad.ts b/src/ipad.ts
index 560bd70..39fcf35 100644
--- a/src/ipad.ts
+++ b/src/ipad.ts
@@ -1,4 +1,5 @@
 import 'core-js/stable/url';
+import 'core-js/stable/function';
 
 import './ipad.html';
 import './modal.css';