Breathe mark problem

[Peter Gentry]

Lilypond 2.18.0 - Windows Vista Home Premium (fully patched)- Frescobaldi 2.0.13

When \breathe is used with beams the score fails to compile with "unexpected 
EVENT_IDENTIFIER"

{
 \clef "treble"
 \time 4/4
 g''8 [  g'8 (  ]  a'8 [  f'8 ]  bes'8 \breathe )   [  bes'8 (  ]  c''8 [  f'8 
] )  |  % 37
}

It doesn't appear to matter which note is followed by \breathe if there is a 
beam it fails - take baems away and it works. Does
anyone know a workaround or tweak to achieve a breath mark between two beamed 
notes?

Thanks in advance....

regards
Peter Gentry