diff --git a/src/Orchard.Web/Orchard.Web.csproj b/src/Orchard.Web/Orchard.Web.csproj
index 7af3dfcab..42cd48f68 100644
--- a/src/Orchard.Web/Orchard.Web.csproj
+++ b/src/Orchard.Web/Orchard.Web.csproj
@@ -56,6 +56,7 @@
     <Reference Include="Microsoft.Web.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\lib\aspnetmvc\Microsoft.Web.Infrastructure.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="NHibernate.ByteCode.Castle, Version=2.1.0.4000, Culture=neutral, PublicKeyToken=aa95f207798dfdb4, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>