diff --git a/StyletUnitTests/StyletUnitTests.csproj b/StyletUnitTests/StyletUnitTests.csproj
index 6beaf9d..56e0e24 100644
--- a/StyletUnitTests/StyletUnitTests.csproj
+++ b/StyletUnitTests/StyletUnitTests.csproj
@@ -53,6 +53,7 @@
   <ItemGroup>
     <Compile Include="ActionExtensionTests.cs" />
     <Compile Include="BindableCollectionTests.cs" />
+    <Compile Include="ConductorOneActiveTests.cs" />
     <Compile Include="ConductorTests.cs" />
     <Compile Include="EventAggregatorTests.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />