diff --git a/ZR.Model/System/Dto/GenTableDto.cs b/ZR.Model/System/Dto/GenTableDto.cs
index 36986c3..df35f76 100644
--- a/ZR.Model/System/Dto/GenTableDto.cs
+++ b/ZR.Model/System/Dto/GenTableDto.cs
@@ -24,7 +24,7 @@ namespace ZR.Model.System.Dto
         /// <summary>
         /// 上级菜单id
         /// </summary>
-        public int ParentMenuId { get; set; }
+        public int? ParentMenuId { get; set; }
         public List<GenTableColumnDto> Columns { get; set; }
     }