diff --git a/src/WMS.Web.Domain/Entitys/InstockTask.cs b/src/WMS.Web.Domain/Entitys/InstockTask.cs
index 84097ad4..c2c0758a 100644
--- a/src/WMS.Web.Domain/Entitys/InstockTask.cs
+++ b/src/WMS.Web.Domain/Entitys/InstockTask.cs
@@ -77,7 +77,7 @@ namespace WMS.Web.Domain.Entitys
         /// <summary>
         /// 供应商Id
         /// </summary>
-        public int SupplierId { get; set; }
+        public int? SupplierId { get; set; }
 
         /// <summary>
         /// 组织编码