How to include XML Documentation from Nuget Package in csproj build output

I have a nuget package that includes an XML documentation file.

packages/MyPackage.1.0.0/lib/net472/MyPackage.xml

However when I build my project, I want to include this xml file in the output.

So when I:

dotnet MyProj.csproj -c Release

I want to get:

> ls bin/Release/net472MyProj.dllMyPackage.dllMyPackage.xml

However it never comes along. How can I get it?