diff --git a/plist-cil.test/plist-cil.test.csproj b/plist-cil.test/plist-cil.test.csproj
index 6d498f9..47178f9 100644
--- a/plist-cil.test/plist-cil.test.csproj
+++ b/plist-cil.test/plist-cil.test.csproj
@@ -103,6 +103,9 @@
     <None Include="test-files\RoundtripReal.plist">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
+    <None Include="test-files\RoundtripBinary.plist">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
   <ItemGroup>