Aberdeen ended their recent home goal drought to overcome St Mirren in the Scottish Premiership and ease some of the disquiet surrounding manager Stephen Robinson.
Having previously endured three straight home games without seeing their team find the net, the Pittodrie fans were celebrating inside two minutes when Brad Lyons curled a wonderful strike from 25 yards in off the underside bar.
The goal did little to inspire Aberdeen as St Mirren took firm control, dominating the ball and creating numerous chances, with the Dons indebted to goalkeeper Marius Muller for a number of sharp saves to preserve their lead.
There was nothing the German keeper could do as the visitors grabbed a deserved equaliser just before half-time. Luke Thomas fed Killian Phillips, and he teed up Eseosa Sule to sweep home from 12 yards.
Aberdeen had the ball in the net early in the second period, but substitute Stuart Armstrong's effort was ruled out for offside.
Robinson's side got themselves back in front when Paul Nsio was adjudged - following a VAR review - to have caught Tony Yogane right on the edge of the box. Nisbet's spot-kick was saved by Jacob Chapman, but the striker followed it in to fire home the rebound.
Substitute Ayoub Mouloua made the points safe with a smart finish just moments after coming on to ensure Aberdeen banked a valuable three points.