diff --git a/model/model.go b/model/model.go
index be43857..5cfa211 100644
--- a/model/model.go
+++ b/model/model.go
@@ -22,7 +22,7 @@ type Undo struct {
 	ID        int32  `json:"id" gorm:"column:id" sql:"id"`
 	Content   string `json:"content" gorm:"column:content" sql:"content"`
 	SpendTime int32  `json:"spend_time" gorm:"column:spend_time" sql:"spend_time"`
-	Child     int32  `json:"child" gorm:"column:child" sql:"child"`
+	Parent     int32  `json:"parent" gorm:"column:parent" sql:"parent"`
 	Level     int32  `json:"level" gorm:"column:level" sql:"level"`
 	Type      int32  `json:"type" gorm:"column:type" sql:"type"`
 }