Mid pair vs passive donk bettor

[jmumm]

matrix_555: posts the small blind $0.50
HERO: posts the big blind $1.00
--- DEALING POCKETS
HERO is dealt [Ts,Jh]
scaper2727: calls $1.00
SliMMyFiSh: folds
matrix_555: calls $0.50
HERO: checks
--- DEALING FLOP [4c,Js,Ah]
matrix_555: bets $1.00
HERO: ...


Sorry I couldn't find a bodog hand converter. Anyhow, donk bettor is 74/20/1.15. The pot is small, board is ragged, and bettor is pretty passive, so I think this is a muck. Had this been heads up, I think I would call down. Thoughts?