diff --git a/src/WMS.Web.Repositories/SerialNumbersRepositories.cs b/src/WMS.Web.Repositories/SerialNumbersRepositories.cs
index e86d161e..1fd9d577 100644
--- a/src/WMS.Web.Repositories/SerialNumbersRepositories.cs
+++ b/src/WMS.Web.Repositories/SerialNumbersRepositories.cs
@@ -211,7 +211,7 @@ namespace WMS.Web.Repositories
             response.MaterialNumber = _erpBasicDataExtendService.GetMaterialNumber(materials, entity.serial.MaterialId);
             response.Specifications = _erpBasicDataExtendService.GetMaterialSpecifications(materials, entity.serial.MaterialId);
             if (entity.boxInventory != null)
-                response.IsBoxInventory = entity.boxInventory.Details.SelectMany(s => s.SerialNumbers).Where(w => serialNumber.Contains(w)).Count() >= 1 ? true : false;
+                response.IsBoxInventory = entity.boxInventory.Details.SelectMany(s => s.SerialNumbers).Where(w => serialNumber.Equals(w)).Count() >= 1 ? true : false;
 
 
             return response;