Index: src/Plugins/Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Ringtoets.Piping.IO.Test.csproj
===================================================================
diff -u -r1d5aa9555ab25c06f0a322173953a79c6ead1404 -rd0e0e368f3f1b297abe0e073a2c313fd38c77c16
--- src/Plugins/Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Ringtoets.Piping.IO.Test.csproj	(.../Ringtoets.Piping.IO.Test.csproj)	(revision 1d5aa9555ab25c06f0a322173953a79c6ead1404)
+++ src/Plugins/Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Ringtoets.Piping.IO.Test.csproj	(.../Ringtoets.Piping.IO.Test.csproj)	(revision d0e0e368f3f1b297abe0e073a2c313fd38c77c16)
@@ -56,6 +56,7 @@
     <Compile Include="PipingSoilProfileReaderTest.cs" />
     <Compile Include="PipingSurfaceLinesCsvReaderTest.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="TestHelpers\FileHelper.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\Ringtoets.Piping.Data\Ringtoets.Piping.Data.csproj">
@@ -75,6 +76,7 @@
       <Name>Ringtoets.Piping.Data.TestUtil</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.