Toto Wolff was "relieved" Mercedes were able to bounce back with a 1-2 in Canada following their troubles in Monaco.
The Silver Arrows recorded their first 1-2 of the season and a dominant display from race winner Lewis Hamilton saw him close the gap to World Championship leader Sebastian Vettel to 12 points.
Mercedes also made up ground in the Constructors' Championship, opening up an eight-point lead as Vettel had to battle to P4 and Kimi Raikkonen struggled to P7 following a brake-by-wire issue late on.
And Wolff said that type of dominant victory was needed for a big confidence boost.
"A cruise like we had today was something we had not had for a long time," Wolff said to Sky Sports F1.
"A bold move from Max at Turn One and you can't afford to have DNFs or lose positions in such a close championship.
"You can see the relief in the team that we bounced back after a difficult week, it was just what the doctor ordered.
"Hamilton? [He's worth] every cent. The combination works perfectly, the two drivers respect each other a lot and they work together really well.
Te team has been working 24/7 the last 10 days, we've had triple shifts in the simulator. Everywhere in the company you could come in in the middle of the night and there would be people working."