Index: src/Deltares.DSoilModel.Tests/Deltares.DSoilModel.Tests.csproj
===================================================================
diff -u -r258 -r263
--- src/Deltares.DSoilModel.Tests/Deltares.DSoilModel.Tests.csproj	(.../Deltares.DSoilModel.Tests.csproj)	(revision 258)
+++ src/Deltares.DSoilModel.Tests/Deltares.DSoilModel.Tests.csproj	(.../Deltares.DSoilModel.Tests.csproj)	(revision 263)
@@ -122,8 +122,11 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Include="TestFiles\DSoilModelsoilprofilesWithErrors.csv">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
+    <None Include="TestFiles\DSoilModelsoilprofilesWithInvalidHeaders.csv">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
     <None Include="TestFiles\DSoilModelsoilprofilesWithSoilTypes.csv">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>