Extending bar line across ungrouped staves

[lilypond]

I can't seem to find the right search terms to reveal how
to extend bar lines across ungrouped staves.  I'd like both
the bar line and the final barline to extend across both
staves in the two-bar example below.

Thank you!

Jim


\version "2.14.2"

\score {
  <<
    \relative c' {
      e1
      <<
        { <b d g>1\fermata }
        \new Staff {
          \override Staff.TimeSignature #'stencil = ##f
          \clef bass
          <g,>1\fermata
        } % staff
      >>
      \bar "|."
    } % relative
  >>
} % score