diff --git a/TestCSClasses/TestCSClasses.csproj b/TestCSClasses/TestCSClasses.csproj
index d94405d..0e2ed2d 100644
--- a/TestCSClasses/TestCSClasses.csproj
+++ b/TestCSClasses/TestCSClasses.csproj
@@ -10,5 +10,6 @@
 		<PackageReference Include="MSTest.TestAdapter" Version="2.1.1" />
 		<PackageReference Include="MSTest.TestFramework" Version="2.1.1" />
 		<PackageReference Include="coverlet.collector" Version="1.3.0" />
+		<ProjectReference Include="..\CSClasses\CSClasses.csproj" />
 	</ItemGroup>
 </Project>