diff --git a/pkg/models/subscription.go b/pkg/models/subscription.go
index 6251df18d..f8dc1710f 100644
--- a/pkg/models/subscription.go
+++ b/pkg/models/subscription.go
@@ -83,6 +83,10 @@ func (et SubscriptionEntityType) validate() error {
 	return &ErrUnknownSubscriptionEntityType{EntityType: et}
 }
 
+// Returns a matching subscription for an entity and user.
+// It will return the next parent of a subscription. That means for tasks, it will first look for a subscription for
+// that task, if there is none it will look for a subscription on the list the task belongs to and if that also
+// doesn't exist it will check for a subscription for the namespace the list is belonging to.
 func getSubscription(s *xorm.Session, entityType SubscriptionEntityType, a web.Auth, entityID int64) (subscription *Subscription, err error) {
 	u, is := a.(*user.User)
 	if !is {