diff --git a/src/Umbraco.Web.UI/umbraco/developer/DataTypes/editDatatype.aspx b/src/Umbraco.Web.UI/umbraco/developer/DataTypes/editDatatype.aspx
index 86066a5c63..12f830e9eb 100644
--- a/src/Umbraco.Web.UI/umbraco/developer/DataTypes/editDatatype.aspx
+++ b/src/Umbraco.Web.UI/umbraco/developer/DataTypes/editDatatype.aspx
@@ -1,4 +1,5 @@
 <%@ Page Language="c#" MasterPageFile="../../masterpages/umbracoPage.Master" Title="Edit data type"
+    ValidateRequest="false"
     CodeBehind="editDatatype.aspx.cs" AutoEventWireup="True" Inherits="umbraco.cms.presentation.developer.editDatatype" %>
 
 <%@ Register TagPrefix="cc1" Namespace="umbraco.uicontrols" Assembly="controls" %>