diff --git a/src/server/api/endpoints/notifications/mark-all-as-read.ts b/src/server/api/endpoints/notifications/mark-all-as-read.ts
index 8d4e512750..2e9b56bfad 100644
--- a/src/server/api/endpoints/notifications/mark-all-as-read.ts
+++ b/src/server/api/endpoints/notifications/mark-all-as-read.ts
@@ -1,4 +1,5 @@
 import { publishMainStream } from '@/services/stream';
+import { pushNotification } from '@/services/push-notification';
 import define from '../../define';
 import { Notifications } from '@/models/index';
 
@@ -21,4 +22,5 @@ export default define(meta, async (ps, user) => {
 
 	// 全ての通知を読みましたよというイベントを発行
 	publishMainStream(user.id, 'readAllNotifications');
+	pushNotification(user.id, 'readAllNotifications', undefined);
 });