diff --git a/platformapi/ebaiapi/shop_sku.go b/platformapi/ebaiapi/shop_sku.go
index 3cf41210..9f1819e0 100644
--- a/platformapi/ebaiapi/shop_sku.go
+++ b/platformapi/ebaiapi/shop_sku.go
@@ -140,7 +140,7 @@ func (a *API) SkuUpdate(shopID string, ebaiSkuID int64, params map[string]interf
 	}
 	result, err := a.AccessAPI("sku.update", utils.MergeMaps(params, defParams))
 	if err == nil {
-		return utils.MustInterface2Int64(result.Data.(map[string]interface{})["sku_id"]), nil
+		return utils.Str2Int64(utils.Interface2String(result.Data.(map[string]interface{})["sku_id"])), nil
 	}
 	return 0, err
 }