 He scored on his debut a day later in a 4–0 win at home to Altrincham, but suffered a hamstring injury after 28 minutes in the following match, a 1–0 defeat at home to Weymouth.McAllister returned to the team for a 1–0 victory at home to Droylsden on 16 February, and finished the season with 17 appearances and two goals for Oxford.McAllister made the step up to the Football League by signing for newly promoted League Two club Exeter City in the summer of 2008.