diff --git a/src/notifications/senders/AppleNotificationSender.ts b/src/notifications/senders/AppleNotificationSender.ts
index 012846f..898bf05 100644
--- a/src/notifications/senders/AppleNotificationSender.ts
+++ b/src/notifications/senders/AppleNotificationSender.ts
@@ -107,6 +107,8 @@ export class AppleNotificationSender {
           resolve();
         });
 
+        // See https://developer.apple.com/documentation/usernotifications/generating-a-remote-notification
+        // for notification payload examples
         req.write(JSON.stringify({
           aps: {
             alert: notificationAlertArguments,