diff --git a/src/WMS.Web.Domain/Services/OutStockTaskService.cs b/src/WMS.Web.Domain/Services/OutStockTaskService.cs
index 9ebf7cba..990e8bf0 100644
--- a/src/WMS.Web.Domain/Services/OutStockTaskService.cs
+++ b/src/WMS.Web.Domain/Services/OutStockTaskService.cs
@@ -605,7 +605,7 @@ namespace WMS.Web.Domain.Services
             //    .ThenByDescending(s => s.Method).ThenByDescending(s => s.Qty).ToList();
             // response.Details.ForEach(f => f.IndexNumber = response.Details.IndexOf(f) + 1);
             response.Details = response.Details.OrderByDescending(s => s.Method)
-                .ThenByDescending(s => s.BoxBillNo).ThenByDescending(s => s.BoxLength).ToList();
+                .ThenByDescending(s => s.BoxBillNo).ThenBy(s => s.BoxLength).ToList();
 
             for (int i = 0; i < response.Details.Count(); i++)
             {