Liam Kelly wants his Killie team-mates to build on their win against Rangers in challenging circumstances when they play Dundee United tomorrow night. Saturday showed that Kilmarnock are capable of taking points from the top team. As well as impressive results against Rangers, Killie have also secured a draw against Celtic and taken five points out of a possible nine against Hearts this season. However, with a single point keeping Kilmarnock ahead of United in sixth spot for now, Kelly believes a win on Tuesday night is vital. He said: "I think inconsistency has been our problem this season. We have been getting results against teams like Hearts, Celtic and Rangers and taking points off them. Our downfall has been playing teams around us, we've not been taking the points from them as we should have. If we had been doing that, and managed to show more consistency in our play, we would be in a better position in the league. It's down to the players to make sure on Tuesday night that we do start showing consistency for the rest of the season and apply ourselves, because we do know how well we can play but we've got to do that every week, not just against the big teams." Kilmarnock could easily have been intimidated by the atmosphere at Ibrox as the Rangers fans rallied to support their favourites. The supporters are worried about the future with administrators running the club since last week. Midfielder Kelly went on: "All the emphasis was on Rangers, but the manager was fantastic with us, just nailing that we had to go out there and perform the way we knew we could perform. With the fans, the atmosphere was intense and we knew Rangers would try to get an early lead and stretch the lead, but we executed our game-plan really well and it was massively pleasing. It was a great game to play in. The atmosphere was fantastic and there was a massive crowd there. The boys and the management staff were really pleased to get the result, it's a massive three points for us because it puts us in the top six and gives us a great chance going into Tuesday night's game." Manager Kenny Shiels believes his side must now build on the win against Rangers. He said: "In the two games prior to the Rangers game, we drew with Dunfermline and Hearts in two games that we did enough to win. We had good energy about us and we are playing well and I feel we have substantiated that now and we are in a position to go to Dundee United with more confidence. It's a tough game, we are aware of that, and we will have to be bang on our game to get something from it. It's better for us to take points off Dundee United than to take points off Rangers because Rangers are in a different league to us in terms of being uncatchable. This is a game it would be fantastic for us to get something from."