Watford saw off a spirited West Bromwich Albion side in an entertaining contest at Vicarage Road to move back into the Championship play-off places.
Albion twice levelled after falling behind but were eventually beaten by a Ken Sema shot that deflected in off Erik Pieters, which keeps them 10th in the table and four points from a top-six place.
Sema had given Watford a first-half lead, firing high into the net from close range after Darnell Furlong had blocked an initial effort from Keinan Davis.
A double substitution at the break paid off for the Baggies, with left-back Conor Townsend popping up in the box at a corner to acrobatically hook in past Daniel Bachmann.