diff --git a/controller/plan.go b/controller/plan.go
index 9f308a4..ec5a784 100644
--- a/controller/plan.go
+++ b/controller/plan.go
@@ -191,7 +191,7 @@ func (this *PlanController) FinishUndo(c *gin.Context) {
 	id := c.Param("id")
 	log.Print("finish undo id",id)
 
-	e := db.GetOrm().Exec(fmt.Sprintf("update undo set done = 1,finish_time='%s' where id = %d",
+	e := db.GetOrm().Exec(fmt.Sprintf("update background.`undo` set done = 1,finish_time='%s' where id = %d",
 			time.Now().Format("2006-01-02 15:04:05"),1)).Error
 	log.Print(fmt.Sprintf("update undo set done = 1,finish_time='%s' where id = %d",time.Now().Format("2006-01-02 15:04:05"),1))
 	if nil != e {