diff --git a/FreeSql/Internal/Model/DynamicFilterInfo.cs b/FreeSql/Internal/Model/DynamicFilterInfo.cs
index 64adb791..060d772b 100644
--- a/FreeSql/Internal/Model/DynamicFilterInfo.cs
+++ b/FreeSql/Internal/Model/DynamicFilterInfo.cs
@@ -13,6 +13,7 @@ namespace FreeSql.Internal.Model
     /// <summary>
     /// 动态过滤条件
     /// </summary>
+    [Serializable]
     public class DynamicFilterInfo
     {
         /// <summary>