Kevin Cawley's first-half brace set Alloa on their way to victory over Queen's Park at Hampden.
Cawley latched on to Ryan McCord's pass to fire into the net on nine minutes and the striker curled home a wonderful effort before the half-hour mark.
Michael Doyle converted Steven Howarth's left-wing cross to put the Wasps three up on 84 minutes.
Anthony Quinn registered a consolation for the Spiders two minutes later with a powerful shot.
Queen's Park: Parry, McGinn, Little, Gallagher, Bradley, Lauchlan (Smith 76), Longworth, Stewart, Murray, Daly (Quinn 76), Sean Burns (Watt 59). Subs Not Used: Strain, Urquhart.
Goals: Quinn 86.
Alloa: Bain, Michael Doyle, Gordon, Harding, Docherty, Innes (Howarth 73), Young, Ryan McCord, Holmes (Ross McCord 58), Winters, Cawley (Campbell 58). Subs Not Used: McDowall, McCullagh.
Booked: Michael Doyle.
Goals: Cawley 9, 28, Michael Doyle 84.
Ref: Brian Winter