diff --git a/src/MvcSiteMapProvider/MvcSiteMapProvider/Resources/Messages.Designer.cs b/src/MvcSiteMapProvider/MvcSiteMapProvider/Resources/Messages.Designer.cs
index 80cfc8aa..5aca843c 100644
--- a/src/MvcSiteMapProvider/MvcSiteMapProvider/Resources/Messages.Designer.cs
+++ b/src/MvcSiteMapProvider/MvcSiteMapProvider/Resources/Messages.Designer.cs
@@ -1,7 +1,7 @@
 //------------------------------------------------------------------------------
 // <auto-generated>
 //     This code was generated by a tool.
-//     Runtime Version:4.0.30319.18047
+//     Runtime Version:4.0.30319.18052
 //
 //     Changes to this file may cause incorrect behavior and will be lost if
 //     the code is regenerated.
@@ -303,6 +303,19 @@ internal static string SiteMapNodeReadOnly {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to The node with key &apos;{0}&apos; has &apos;{1}&apos; configured in both RouteValues and PreservedRouteParameters, which is not allowed. 
+        ///
+        ///PreservedRouteParameters always copies the route value from the current HTTP request which would overwrite your configured RouteValue in every case. Either remove &apos;{1}&apos; from PreservedRouteParameters or as a configured RouteValue.
+        ///
+        ///Alternatively, if you are configuring the node in XML and intend to use &apos;{1}&apos; as a custom attribute, use the &apos;MvcSiteMapProvider_AttributesToIgnore&apos; configura [rest of string was truncated]&quot;;.
+        /// </summary>
+        internal static string SiteMapNodeSameKeyInRouteValueAndPreservedRouteParameter {
+            get {
+                return ResourceManager.GetString("SiteMapNodeSameKeyInRouteValueAndPreservedRouteParameter", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to SiteMap is readonly, nodes cannot be modified..
         /// </summary>
diff --git a/src/MvcSiteMapProvider/MvcSiteMapProvider/Resources/Messages.resx b/src/MvcSiteMapProvider/MvcSiteMapProvider/Resources/Messages.resx
index cfd970fa..505256f6 100644
--- a/src/MvcSiteMapProvider/MvcSiteMapProvider/Resources/Messages.resx
+++ b/src/MvcSiteMapProvider/MvcSiteMapProvider/Resources/Messages.resx
@@ -216,4 +216,11 @@
   <data name="ReflectionSiteMapBuilderRootKeyAmbiguous" xml:space="preserve">
     <value>There is more than one MvcSiteMapNodeAttribute declared without a parent key. The ParentKey property must be set for all (or all but 1) MvcSiteMapNodeAttribute in the application.</value>
   </data>
+  <data name="SiteMapNodeSameKeyInRouteValueAndPreservedRouteParameter" xml:space="preserve">
+    <value>The node with key '{0}' has '{1}' configured in both RouteValues and PreservedRouteParameters, which is not allowed. 
+
+PreservedRouteParameters always copies the route value from the current HTTP request which would overwrite your configured RouteValue in every case. Either remove '{1}' from PreservedRouteParameters or as a configured RouteValue.
+
+Alternatively, if you are configuring the node in XML and intend to use '{1}' as a custom attribute, use the 'MvcSiteMapProvider_AttributesToIgnore' configuration setting to ensure '{1}' is not automatically added to RouteValues. If using external DI, this setting is injected into the constructor of 'SiteMapXmlReservedAttributeNameProvider'.</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/src/MvcSiteMapProvider/MvcSiteMapProvider/SiteMap.cs b/src/MvcSiteMapProvider/MvcSiteMapProvider/SiteMap.cs
index 2eb87e71..b4188332 100644
--- a/src/MvcSiteMapProvider/MvcSiteMapProvider/SiteMap.cs
+++ b/src/MvcSiteMapProvider/MvcSiteMapProvider/SiteMap.cs
@@ -102,6 +102,12 @@ public virtual void AddNode(ISiteMapNode node)
         /// </exception>
         public virtual void AddNode(ISiteMapNode node, ISiteMapNode parentNode)
         {
+            if (node == null)
+            {
+                throw new ArgumentNullException("node");
+            }
+            ThrowIfSiteMapNodeRoutingConfigInvalid(node);
+
             // Avoid issue with url table not clearing correctly.
             if (this.FindSiteMapNode(node.Url) != null)
             {
@@ -763,6 +769,18 @@ protected virtual ISiteMapNode ReturnNodeIfAccessible(ISiteMapNode node)
             return null;
         }
 
+        protected virtual void ThrowIfSiteMapNodeRoutingConfigInvalid(ISiteMapNode node)
+        {
+            if (node.PreservedRouteParameters.Count > 0)
+            {
+                foreach (var key in node.PreservedRouteParameters)
+                {
+                    if (node.RouteValues.ContainsKey(key))
+                        throw new MvcSiteMapException(String.Format(Resources.Messages.SiteMapNodeSameKeyInRouteValueAndPreservedRouteParameter, node.Key, key));
+                }
+            }
+        }
+
         #endregion
 
     }