Grady Diangana and Brandon Thomas-Asante scored as West Brom beat Coventry 2-0 at the CBS Arena.
The Sky Blues had lost just once at home since mid-January, but were handed a third consecutive defeat to remain 20th in the Sky Bet Championship table.
The Baggies' second away win of the season lifted them back into the play-off positions as they notched their sixth clean sheet in seven outings.
Carlos Corberan's men began the night without a recognised striker as Thomas-Asante was left out of the line-up, but when Ben Wilson spilled Nathaniel Chalobah's effort straight at the feet of Diangana, the winger had the presence of mind to steady himself and roll into an empty net in the 17th minute.