Iain Flannigan's late strike saw Alloa claim a 2-1 victory over Queen's Park at Hampden.
After a goalless first-half, Ross Millen gave Queen's Park the lead after 54 minutes when the hosts were awarded a penalty. Millen stepped up to slot past Neil Parry in the Alloa goal.
But the visitors equalised with 10 minutes remaining as Grieg Spence scored a penalty of his own.
The Wasps completed the comeback with four minutes remaining as Flannigan popped up to snatch the winner for Jack Ross' side.