diff --git a/source/browser.ts b/source/browser.ts
index 9841816c7..96c30fb67 100644
--- a/source/browser.ts
+++ b/source/browser.ts
@@ -288,6 +288,11 @@ ipc.answerMain('toggle-mute-notifications', async () => {
 		await closePreferences();
 	}
 
+	// TODO: Fix notifications
+	if (notificationCheckbox === null) {
+		return false;
+	}
+
 	return !notificationCheckbox.checked;
 });