diff --git a/src/WMS.Web.Domain/Entitys/InStockTaskBox.cs b/src/WMS.Web.Domain/Entitys/InStockTaskBox.cs
index abc4f8f6..b9f814e4 100644
--- a/src/WMS.Web.Domain/Entitys/InStockTaskBox.cs
+++ b/src/WMS.Web.Domain/Entitys/InStockTaskBox.cs
@@ -37,7 +37,7 @@ namespace WMS.Web.Domain.Entitys
         /// <summary>
         /// 收货时间
         /// </summary>
-        public DateTime CreateTime { get; set; } = DateTime.Now;
+        public DateTime? CreateTime { get; set; } = DateTime.Now;
 
         /// <summary>
         /// 明细