diff --git a/src/Umbraco.Web/Models/ValidatePasswordResetCodeModel.cs b/src/Umbraco.Web/Models/ValidatePasswordResetCodeModel.cs
index cba92eeff7..7e30e0881b 100644
--- a/src/Umbraco.Web/Models/ValidatePasswordResetCodeModel.cs
+++ b/src/Umbraco.Web/Models/ValidatePasswordResetCodeModel.cs
@@ -1,8 +1,10 @@
-using System.ComponentModel.DataAnnotations;
+using System;
+using System.ComponentModel.DataAnnotations;
 using System.Runtime.Serialization;
 
 namespace Umbraco.Web.Models
 {
+    [Serializable]
     [DataContract(Name = "validatePasswordReset", Namespace = "")]
     public class ValidatePasswordResetCodeModel
     {