o ring in campag ergo levers

keithc440
keithc440 Posts: 277
edited October 2012 in Road buying advice
Whilst threading the rear derailluer cable through my ergo lever the small gold 'o' ring became dislodged. I put it back over the cable and it now sits between the cable outer casing and where this is pressed up against the lever body.
is this the correct place ?
Sorry posted on wrong board. Mods please delete.