diff --git a/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Pages/MultipleHomePageException.cs b/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Pages/MultipleHomePageException.cs
index 2474b854d6..734445a441 100644
--- a/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Pages/MultipleHomePageException.cs
+++ b/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Pages/MultipleHomePageException.cs
@@ -2,10 +2,11 @@
 
 namespace Volo.CmsKit.Domain.Volo.CmsKit.Pages;
 
+[Serializable]
 public class MultipleHomePageException : BusinessException
 {
-    public MultipleHomePageException()
-    {
-        Code = CmsKitErrorCodes.Pages.MultipleHomePage;
-    }
+	public MultipleHomePageException()
+	{
+		Code = CmsKitErrorCodes.Pages.MultipleHomePage;
+	}
 }