how to render markdown page with haml template into Padrino ?

controller.rb

get :staff do
  # render :markdown, :staff
  render :markdown, :staff  , :layout_engine => :haml, :layout => :application
end

gistfile1.txt

app/views/layout/application.html.haml
app/views/layout/contact.html.haml
app/views/layout/staff.html.markdown

gistfile2.txt

erro:
Errno::ENOENT at /staff 
store/app/views/layouts/application.haml

if i duplicate layout form application.html.haml to applicaiton.haml work..... solution ?

@DAddYE

first work well

second:
Errno::ENOENT at /staff
no succia il file :
tore/app/views/layouts/application.html.haml.haml