[xmonad] XMonad.Prompt.Directory and hidden directory

Hello all, I'm using XMonad.Prompt.Directory in my xmonad.hs, and I would like to know if it is possible that it also prompts the hidden directory, at the moment, when I type . in the prompt I'm direct sent to parent directory with autocompletion, and I'm only prompted with .. with the autocompletion disabled. I've looked in the Directory.hs, made changes in filter lines and rebuild, but no changes.