diff --git a/pkg/model/approval.go b/pkg/model/approval.go
index 50e3d62..9ec8313 100644
--- a/pkg/model/approval.go
+++ b/pkg/model/approval.go
@@ -192,11 +192,11 @@ func UpdateApproval(in *approval.CreateRequest) (*Approval, error) {
 		}
 
 		// 保存基本信息
-		entity = &Approval{
+		upEntity := &Approval{
 			Content: in.Content,
 		}
 
-		if err := DB.Where(&Approval{ID: in.ID}).Updates(&entity).Error; err != nil {
+		if err := DB.Where(&Approval{ID: in.ID}).Updates(&upEntity).Error; err != nil {
 			return err
 		}