According to AVNAwards.com, he as co-winner of the "Reuben Sturman" award as an "actor".
Since Mr. Sturman was a pornographer who was under incessant attack with "obsenity" prosecution, I would say it would have more to do with his recent fight/victory in this arena and that the web designers at AVN are too lazy to have the "labels" change with the nature of the awards.
Wiki entry for the award's namesake Reuben Sturman - yet another Ohio pervert. Keep up the fight, Mr. Steward.