diff --git a/src/app/hooks/usePermission.ts b/src/app/hooks/usePermission.ts
index ed3b877ae..71a601be2 100644
--- a/src/app/hooks/usePermission.ts
+++ b/src/app/hooks/usePermission.ts
@@ -1,15 +1,15 @@
 import { useEffect, useState } from 'react';
 
 export const getNotificationState = (): PermissionState => {
-  if (!window.Notification) {
-    return 'denied';
-  }
+  if ('Notification' in window) {
+    if (window.Notification.permission === 'default') {
+      return 'prompt';
+    }
 
-  if (window.Notification.permission === 'default') {
-    return 'prompt';
+    return window.Notification.permission;
   }
 
-  return window.Notification.permission;
+  return 'denied';
 };
 
 export function usePermissionState(name: PermissionName, initialValue: PermissionState = 'prompt') {
diff --git a/src/app/utils/dom.ts b/src/app/utils/dom.ts
index 963568cd3..f4c3f719b 100644
--- a/src/app/utils/dom.ts
+++ b/src/app/utils/dom.ts
@@ -219,7 +219,7 @@ export const syntaxErrorPosition = (error: SyntaxError): number | undefined => {
 };
 
 export const notificationPermission = (permission: NotificationPermission) => {
-  if (window.Notification) {
+  if ('Notification' in window) {
     return window.Notification.permission === permission;
   }
   return false;