diff --git a/app/Service/Api/Good/OptionalListService.php b/app/Service/Api/Good/OptionalListService.php
index ef24391..b73591f 100644
--- a/app/Service/Api/Good/OptionalListService.php
+++ b/app/Service/Api/Good/OptionalListService.php
@@ -122,7 +122,7 @@ class OptionalListService extends BaseService
             }
 
             $res[$item['category_id']]['spu_list'][] = $item;
-            $skuList[] = $item['sku_list'];
+            $skuList = array_merge($skuList, $item['sku_list']);
         }
 
         if (!empty($purchaseData)) {