diff --git a/business/model/store_sku.go b/business/model/store_sku.go
index 8a81ec9cb..49aebbbc6 100644
--- a/business/model/store_sku.go
+++ b/business/model/store_sku.go
@@ -94,7 +94,7 @@ type StoreSkuBind struct {
 	Status     int
 
 	// ElmID  int64 `orm:"column(elm_id);index"`
-	MtwmID int64 `orm:"column(mtwm_id)"`
+	MtwmID int64 `orm:"column(mtwm_id);index"`
 	EbaiID int64 `orm:"column(ebai_id);index"`
 	// WscID  int64 `orm:"column(wsc_id);index"`  // 表示微盟skuId
 	// WscID2 int64 `orm:"column(wsc_id2);index"` // 表示微盟goodsId