diff --git a/src/libraries/System.Xml.XPath.XDocument/tests/System.Xml.XPath.XDocument.Tests.csproj b/src/libraries/System.Xml.XPath.XDocument/tests/System.Xml.XPath.XDocument.Tests.csproj
index c63a57f595f82875581c79aa154b6870e1c21f4f..6c464cfe80089416274dab82aed323eb89805b7b 100644
--- a/src/libraries/System.Xml.XPath.XDocument/tests/System.Xml.XPath.XDocument.Tests.csproj
+++ b/src/libraries/System.Xml.XPath.XDocument/tests/System.Xml.XPath.XDocument.Tests.csproj
@@ -74,6 +74,17 @@
       <Private>False</Private>
       <SpecificVersion>False</SpecificVersion>
     </Reference>
+    <Reference Include="System.Text.Encoding">
+      <HintPath>..\..\packages\System.Text.Encoding.4.0.10-beta-22405\lib\portable-wpa80+win80+net45+aspnetcore50\System.Text.Encoding.dll</HintPath>
+      <Private>False</Private>
+      <SpecificVersion>False</SpecificVersion>
+    </Reference>
+    <Reference Include="System.Text.Encoding.CodePages">
+      <HintPath>..\..\packages\System.Text.Encoding.CodePages.4.0.0-beta-22405\lib\portable-wpa80+win80+net45+aspnetcore50\System.Text.Encoding.CodePages.dll</HintPath>
+      <Private>False</Private>
+      <SpecificVersion>False</SpecificVersion>
+    </Reference>
+
     <Reference Include="xunit.abstractions">
       <HintPath>..\..\packages\xunit.abstractions.2.0.0-beta5-build2785\lib\net35\xunit.abstractions.dll</HintPath>
     </Reference>
@@ -304,4 +315,4 @@
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/libraries/System.Xml.XPath.XDocument/tests/packages.config b/src/libraries/System.Xml.XPath.XDocument/tests/packages.config
index 2dc5f5b7172a0dd5d8e0a9deb788c75da2db06a0..4ebd778d0c2dca516048c2b59eaf99d691758434 100644
--- a/src/libraries/System.Xml.XPath.XDocument/tests/packages.config
+++ b/src/libraries/System.Xml.XPath.XDocument/tests/packages.config
@@ -1,5 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="System.Runtime" version="4.0.20-beta-22405" />
+  <package id="System.Xml.ReaderWriter" version="4.0.10-beta-22405" />
+  <package id="System.IO" version="4.0.10-beta-22405" />
+  <package id="System.Runtime.Extensions" version="4.0.10-beta-22405" />
+  <package id="System.Reflection" version="4.0.10-beta-22405" />
+  <package id="System.Globalization" version="4.0.10-beta-22405" />
+  <package id="System.Threading.Tasks" version="4.0.10-beta-22405" />
+  <package id="System.Text.Encoding" version="4.0.10-beta-22405" />
+  <package id="System.Text.Encoding.CodePages" version="4.0.0-beta-22405" />
   <package id="xunit" version="2.0.0-beta5-build2785" targetFramework="net45" />
   <package id="xunit.abstractions" version="2.0.0-beta5-build2785" targetFramework="net45" />
   <package id="xunit.assert" version="2.0.0-beta5-build2785" targetFramework="net45" />