The Australia international accepts he will need to get on the scoresheet more if they're to lose top striker Jermaine Beckford this month.
"We didn't do the things we did well on Sunday," the Australian said. "We pressed them [United] really well and had the composure to pass the ball, but sometimes you have these days.
"I've scored four [goals] this season and hope to get a few more," Kilkenny said. "He's a good player, he scores and gets all the headlines, but the manager's drummed into us that we're a team and working for the same thing. Obviously it's hard to replace someone who scores so many goals, but we've got the players in the squad who can do it."