Alloa’s Ben Gordon scored with the final kick of the ball to deny Dundee moving clear at the top of the SPFL Championship.
Ryan Conroy gave Dundee the lead from the penalty spot after Peter MacDonald was brought down in the area after 68 minutes.
Alloa moved defender Gordon forward for the final few moments and it paid off for them as he was on hand to turn home from 6 yards out after cross from the left.