diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index bd6527da1..2c13e469f 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -27,6 +27,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <!-- DynamicProxyGenAssembly2 is needed so Moq can use our internals -->
     <InternalsVisibleTo Include="DynamicProxyGenAssembly2" PublicKey="0024000004800000940000000602000000240000525341310004000001000100c547cac37abd99c8db225ef2f6c8a3602f3b3606cc9891605d02baa56104f4cfc0734aa39b93bf7852f7d9266654753cc297e7d2edfe0bac1cdcf9f717241550e0a7b191195b7667bb4f64bcb8e2121380fd1d9d46ad2d92d2d15605093924cceaf74c4861eff62abf69b9291ed0a340e113be11e6a7d3113e92484cf7045cc7" />
     <InternalsVisibleTo Include="ImageSharp.Benchmarks" PublicKey="$(SixLaborsPublicKey)" />
     <InternalsVisibleTo Include="ImageSharp.Tests.ProfilingSandbox" PublicKey="$(SixLaborsPublicKey)" />