diff --git a/AssemblyVersion.cs b/AssemblyVersion.cs
index cdcbd1f..e9e3524 100644
--- a/AssemblyVersion.cs
+++ b/AssemblyVersion.cs
@@ -16,5 +16,5 @@ using System.Reflection;
 //
 // You can specify all the values or you can default the Revision and Build Numbers 
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("3.0.1.430")]
-[assembly: AssemblyFileVersion("3.0.1.430")]
+[assembly: AssemblyVersion("3.0.1.431")]
+[assembly: AssemblyFileVersion("3.0.1.431")]
diff --git a/WebApplication/Sitemap.aspx.cs b/WebApplication/Sitemap.aspx.cs
index ec5439b..35943cb 100644
--- a/WebApplication/Sitemap.aspx.cs
+++ b/WebApplication/Sitemap.aspx.cs
@@ -7,6 +7,7 @@ using System.Web.UI;
 using System.Web.UI.WebControls;
 using System.Xml;
 using ScrewTurn.Wiki.PluginFramework;
+using System.Text;
 
 namespace ScrewTurn.Wiki {
 
@@ -23,7 +24,7 @@ namespace ScrewTurn.Wiki {
 			using(XmlWriter writer = XmlWriter.Create(Response.OutputStream)) {
 				writer.WriteStartDocument();
 
-				writer.WriteStartElement("urlset");
+				writer.WriteStartElement("urlset", "http://www.sitemaps.org/schemas/sitemap/0.9");
 				writer.WriteAttributeString("xmlns", "xsi", null, "http://www.w3.org/2001/XMLSchema-instance");
 				writer.WriteAttributeString("xsi", "schemaLocation", null, "http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/09/sitemap.xsd");