diff --git a/src/client/app/desktop/script.ts b/src/client/app/desktop/script.ts
index 8dc048219..7f4a2d0b0 100644
--- a/src/client/app/desktop/script.ts
+++ b/src/client/app/desktop/script.ts
@@ -94,7 +94,7 @@ init(async (launch) => {
 	/**
 	 * Init Notification
 	 */
-	if ('Notification' in window) {
+	if ('Notification' in window && os.store.getters.isSignedIn) {
 		// 許可を得ていなかったらリクエスト
 		if ((Notification as any).permission == 'default') {
 			await Notification.requestPermission();