diff --git a/pkg/models/tasks.go b/pkg/models/tasks.go
index e7af2725f..9713b05b7 100644
--- a/pkg/models/tasks.go
+++ b/pkg/models/tasks.go
@@ -1037,8 +1037,13 @@ func (t *Task) Update(s *xorm.Session, a web.Auth) (err error) {
 	}
 	t.Updated = nt.Updated
 
+	doer, err := user.GetFromAuth(a)
+	if err != nil {
+		return err
+	}
 	err = events.Publish(&TaskUpdatedEvent{
 		Task: t,
+		Doer: doer,
 	})
 	if err != nil {
 		return err