Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Ringtoets.Piping.IO.csproj
===================================================================
diff -u -r8c8285c58f677a2905127f1c3576eb7d6ea4206b -r3793f0710b624c5e9896dd9e8ec91232e5584b23
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Ringtoets.Piping.IO.csproj	(.../Ringtoets.Piping.IO.csproj)	(revision 8c8285c58f677a2905127f1c3576eb7d6ea4206b)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Ringtoets.Piping.IO.csproj	(.../Ringtoets.Piping.IO.csproj)	(revision 3793f0710b624c5e9896dd9e8ec91232e5584b23)
@@ -58,6 +58,10 @@
     <Compile Include="Importers\ISurfaceLineUpdateSurfaceLineStrategy.cs" />
     <Compile Include="Importers\StochasticSoilModelImporter.cs" />
     <Compile Include="Importers\StochasticSoilModelUpdateException.cs" />
+    <Compile Include="Readers\PipingCalculationGroupReader.cs" />
+    <Compile Include="Readers\IReadPipingCalculationItem.cs" />
+    <Compile Include="Readers\ReadPipingCalculation.cs" />
+    <Compile Include="Readers\ReadPipingCalculationGroup.cs" />
     <Compile Include="SoilProfile\LayerProperties.cs" />
     <Compile Include="SoilProfile\MechanismDatabaseColumns.cs" />
     <Compile Include="SoilProfile\MetaDataDatabaseColumns.cs" />