diff --git a/app/javascript/mastodon/main.jsx b/app/javascript/mastodon/main.jsx
index f82603631899f..cd73cb572e1d1 100644
--- a/app/javascript/mastodon/main.jsx
+++ b/app/javascript/mastodon/main.jsx
@@ -33,7 +33,7 @@ function main() {
         console.error(err);
       }
 
-      if (registration) {
+      if (registration && 'Notification' in window && Notification.permission === 'granted') {
         const registerPushNotifications = await import('mastodon/actions/push_notifications');
 
         store.dispatch(registerPushNotifications.register());