diff --git a/appstore/notification.go b/appstore/notification.go
index 78f18c1..8081e1f 100644
--- a/appstore/notification.go
+++ b/appstore/notification.go
@@ -89,6 +89,7 @@ type SubscriptionNotification struct {
 	Status                int                 `json:"status"`
 	Receipt               NotificationReceipt `json:"recipt"`
 	SubscriptionRetryFlag string              `json:"is_in_billing_retry_period,omitempty"`
+
 	// Posted if the notification_type is RENEWAL or INTERACTIVE_RENEWAL, and only if the renewal is successful.
 	// Posted also if the notification_type is INITIAL_BUY.
 	// Not posted for notification_type CANCEL.