How do I use Windsor to inject dependencies into ActionFilterAttributes

Having seen how NInject can do it and AutoFac can do it I'm trying to figure out how to inject dependencies into MVC ActionFilters using Castle Windsor

At the moment I'm using an ugly static IoC helper class to resolve dependencies from the constructor code like this:

public class MyFilterAttribute : ActionFilterAttribute
{    
  private readonly IUserRepository _userRepository;
  public MyFilterAttribute() : this(IoC.Resolve<IUserRepository>()) { }
  public MyFilterAttribute(IUserRepository userRepository)
  {
     _userRepository = userRepository;
  }
}

I'd love to remove that static antipattern IoC thing from my filters.

Any hints to as how I would go about doing that with Castle Windsor?

And no, changing DI framework is not an option.