diff --git a/src/Umbraco.Web.UI/Umbraco.Web.UI.csproj b/src/Umbraco.Web.UI/Umbraco.Web.UI.csproj
index 551c9e5e79..1416a0161c 100644
--- a/src/Umbraco.Web.UI/Umbraco.Web.UI.csproj
+++ b/src/Umbraco.Web.UI/Umbraco.Web.UI.csproj
@@ -147,10 +147,12 @@
     <Reference Include="System.Data.SqlServerCe, Version=4.0.0.1, Culture=neutral, PublicKeyToken=89845dcd8080cc91, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\lib\SQLCE4\System.Data.SqlServerCe.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System.Data.SqlServerCe.Entity, Version=4.0.0.1, Culture=neutral, PublicKeyToken=89845dcd8080cc91, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\lib\SQLCE4\System.Data.SqlServerCe.Entity.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System.Design" />
     <Reference Include="System.Drawing">