Airdrie ended Queen's Park's 100% start to the season with a deserved victory at the Excelsior Stadium.
The home side dominated the first period and forced keeper Mark Cairns into making a number of good saves.
Eight minutes after the break the deadlock was broken when Stephen McKeown slid a pass in for Stuart Noble to drill into the bottom corner.
Queens nearly levelled late on but Stephen Robertson made a fantastic save from a Steven Canning shot.
Airdrie Utd: Robertson, McKenna, Lovering, Smith, Smyth, McDonald, Noble, McKeown (McDougall 84), Russell (Prunty 70), Holmes, Waddle. Subs Not Used: Sharp, Soutar, Hollis.
Booked: Holmes, Smyth.
Goal: Noble 53.
Queen's Park: Cairns, Paton, Dunlop, Sinclair, Agostini, Trouten, Kettlewell, Cairney (Ronald 77), Quinn (Dunn 59), Canning, Ferry (McGrady 77). Subs Not Used: Molloy, Cowie.
Booked: Cairney, Kettlewell.
Ref: S Conroy