He scored 15 goals for Aberdeen in the 2004–05 season – including twelve in the league – which helped his team to a fourth-place finish, but they just missed out on UEFA Cup qualification.

[4] Aberdeen finished third in the SPL in the 2006–07 season and therefore qualified for the 2007–08 UEFA Cup first round, where they faced Ukrainian club Dnipro.

The match ended 1–1 with Andriy Vorobey scoring the equaliser for Dnipro,[6] but Mackie's strike ensured Aberdeen's progress to the group stages of the tournament on away goals and secured a substantial financial windfall for the club.

[8] On 19 July 2011, Aberdeen played La Liga side Villarreal at Pittodrie in a testimonial match to mark Mackie's thirteen years with the club.

[citation needed] On 30 January 2007, Alex McLeish named Mackie in the Scotland B team to play Finland B at Rugby Park, Kilmarnock on 7 February.