Wasps director of rugby Dai Young has said his side's bonus-point loss at Leinster in the European Rugby Champions Cup will be meaningless if they fail to beat Harlequins next week.
The Dublin side turned around a nine-point half-time deficit to win 30-25.
"Bonus points away from home count for nothing if you don't win your home games," Young told BBC Radio 5 live.
"We've got to bounce back next week, win our home game and then we'll be in a pretty good situation."
Alapati Leiua's score and a Christian Wade wonder try had Wasps 20-11 up at the break against the three-time Heineken Cup champions.
|Wasps v Quins: Last five Premiership meetings|
|Quins 26-23 Wasps|
|Quins 11-10 Wasps|
|Wasps 15-16 Quins|
|Quins 16-17 Wasps|
|Wasps 40-42 Quins|
But Darragh Fanning's second try of the game and Dominic Ryan's effort completed a second-half comeback.
Wasps next host fellow Premiership side Harlequins, who beat Castres at home in their opening Pool Two match.
The two side's last five Premiership games have been decided by a margin of three points or less, with Quins coming out on top in four of those games.
"We tend to live on the edge when we play each other, with only a couple of points in it either way," Young said.
"One or two have gone our way but more have gone their way in recent times.
"We know each other really well and it will certainly be a good encounter."