diff --git a/worker/approval.go b/worker/approval.go
index 9167aa5..ea0e898 100644
--- a/worker/approval.go
+++ b/worker/approval.go
@@ -148,6 +148,7 @@ func (s *Approval) saveVacation(detail *qyweixin.ApproveDetail) {
 		return
 	}
 	if old != nil {
+		newData.Id = old.Id
 		err = dbDao.Update(newData)
 		if err != nil {
 			log.Errorf("db error :%s", err.Error())