diff --git a/src/modules/item-related/item/infrastructure/dto/item.dto.ts b/src/modules/item-related/item/infrastructure/dto/item.dto.ts
index b2169b6..250d3a8 100644
--- a/src/modules/item-related/item/infrastructure/dto/item.dto.ts
+++ b/src/modules/item-related/item/infrastructure/dto/item.dto.ts
@@ -68,8 +68,9 @@ export class ItemDto extends BaseStatusDto implements ItemEntity {
   @IsNumber()
   @ValidateIf(
     (body) =>
-      body.item_type.toLowerCase() != ItemType.FREE_GIFT ||
-      body.item_type != ItemType.BUNDLING,
+      ![ItemType.FREE_GIFT, ItemType.BUNDLING].includes(
+        body.item_type.toLowerCase(),
+      ),
   )
   sales_margin: number;