Pablo Sarabia's first-half header gave Wolves a hard-fought Premier League win over bottom club Sheffield United at Molineux.
The Spain winger was left totally unmarked as he registered his third goal of the campaign for the hosts, flicking Rayan Ait-Nouri's left-wing delivery into the top right corner.
The result lifts Gary O'Neil's side up to eighth in the table and boosts their hopes of appearing in Europe next season.
It was far from a vintage display from Wolves, with Sarabia's header their only effort on target until a stoppage-time shot from Joao Gomes, in a contest that saw their determined opponents sit deep and attempt to counter with pace on the break.