diff --git a/DOAN.Service/MES/Product/ProWorkorderQueryService.cs b/DOAN.Service/MES/Product/ProWorkorderQueryService.cs
index dfe34e8..36641a4 100644
--- a/DOAN.Service/MES/Product/ProWorkorderQueryService.cs
+++ b/DOAN.Service/MES/Product/ProWorkorderQueryService.cs
@@ -269,6 +269,7 @@ namespace DOAN.Service.MES.product
         {
             var result = Context
                 .Queryable<ProWorkorder>()
+                .WhereIF(!string.IsNullOrEmpty(parm.ProductionCode),it=> it.productionCode == parm.ProductionCode)
                 .Where(it => (it.ProductNum - it.ShipmentNum) > 0)
                 .OrderByDescending(it => it.CreatedTime)
                 .Select(it => new ProWorkorderStockDto