 After this request was promptly turned down, Maguire scored two goals in Aberdeen's 5–0 Scottish Cup victory over East Fife.During the January transfer window in 2010, Maguire moved on loan to Kilmarnock, reuniting him with former Aberdeen boss Jimmy Calderwood.On his debut against Celtic, he scored the only goal of the game to give Kilmarnock their first league win in eight games.