In that case a repair with resin could do it if the damaged area isn't too large and you are reasonably handy>you can mix a little artist oil colour into the resin component of Araldite to get the right colour(too much will slow down or prevent setting) and when the mix looks OK,add the hardener and apply into the damaged area,.When its nearly set(probably overnight),trim off any excess standing proud with a razor or stanley knife blade held flat against the surface.Finally,when fully set rub down carefully with very fine steel wool.
i'd suggest you do a trial run on an offcut or similar material first,to make sure you are happy with the result.If not don't risk making it worse.
Good lick.