With Chelsea and Manchester City up next for QPR, Green believes that their triumph over Villa could not have come at a better time.
"It is pleasing to get the win, I'm delighted for everyone," he told Sky Sports News. "It gives you that little bit of a lift going into two tough games. If we hadn't won you'd be looking at the next two games with a bit more concern."
QPR continue their Premier League campaign on Saturday when they play Chelsea at Stamford Bridge.