Richard Kone found the back of the net in stoppage time to secure a victory for Wycombe over 10-man Barnsley with a score of 2-1 at Adams Park.
Although both teams had a slow start, it was Barnsley who scored first through Jonathan Russell after 10 minutes.
This kickstarted Wycombe into action as they launched an attack on the Barnsley goal.
Ben Killip made some crucial saves to keep Kone and his teammates at bay.
Wycombe dominated the second half and earned a penalty in the 65th minute, which Kone successfully converted.
Barnsley's situation worsened as Marc Roberts received a red card for a dangerous tackle.
In the dying moments of the game, Kone completed his brace by heading in a cross from Garath McCleary.
Wycombe remains in second place with 58 points, while Barnsley sits in ninth place.