diff --git a/src/Orchard.Web/Themes/Web.config b/src/Orchard.Web/Themes/Web.config
index be244e18c..d51708abb 100644
--- a/src/Orchard.Web/Themes/Web.config
+++ b/src/Orchard.Web/Themes/Web.config
@@ -1,12 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
+  <configSections>
+    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
+      <remove name="host" />
+      <remove name="pages" />
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+    </sectionGroup>
+  </configSections>
+
   <appSettings>
     <add key="webpages:Enabled" value="false" />
   </appSettings>
+
+  <system.web.webPages.razor>
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
+      <namespaces>
+        <add namespace="System.Web.Mvc" />
+        <add namespace="System.Web.Mvc.Ajax" />
+        <add namespace="System.Web.Mvc.Html" />
+        <add namespace="System.Web.Routing" />
+        <add namespace="System.Linq"/>
+        <add namespace="System.Collections.Generic"/>
+        <add namespace="Orchard.Mvc.Html"/>
+      </namespaces>
+    </pages>
+  </system.web.webPages.razor>
+
   <system.web>
     <httpHandlers>
-        <!-- iis6 - for any request in this location, return via managed static file handler -->
-        <add path="*/Theme.png" verb="*" type="System.Web.StaticFileHandler" />
+      <!-- iis6 - for any request in this location, return via managed static file handler -->
+      <add path="*/Theme.png" verb="*" type="System.Web.StaticFileHandler" />
     </httpHandlers>
     <!--
         Enabling request validation in view pages would cause validation to occur
@@ -24,16 +49,24 @@
         <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" namespace="System.Web.Mvc" tagPrefix="mvc" />
       </controls>
     </pages>
+    <compilation targetFramework="4.0">
+      <assemblies>
+        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
+        <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+      </assemblies>
+    </compilation>
   </system.web>
 
   <system.webServer>
     <validation validateIntegratedModeConfiguration="false"/>
     <handlers accessPolicy="Script,Read">
-        <!--
+      <!--
         iis7 - for any request to a file exists on disk, return it via native http module.
         accessPolicy 'Script' is to allow for a managed 404 page.
         -->
-        <add name="ThemePreviewImage" path="*/Theme.png" verb="*" modules="StaticFileModule" preCondition="integratedMode" resourceType="File" requireAccess="Read" />
+      <add name="ThemePreviewImage" path="*/Theme.png" verb="*" modules="StaticFileModule" preCondition="integratedMode" resourceType="File" requireAccess="Read" />
     </handlers>
   </system.webServer>
   <runtime>
@@ -44,4 +77,4 @@
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
-</configuration>
+</configuration>
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