Everton captain Phil Neville insists his side's win over Manchester United was no fluke, but warned that it will count for little if they fail to build on it.
Neville has dismissed any suggestion that Monday night's victory was a major upset.
But Everton visit Aston Villa on Saturday, where they have not won in seven visits, and Neville is wary of letting all their hard work against United go to waste.
He told Everton's official website: "On Monday. we wanted to prove people wrong. We want to hit the ground running and we had a good victory on Monday night, but it's the old adage – if we don't get a result at Villa, it means nothing.
"Villa Park is one of my favourite away grounds and I don't think we've won there in the last seven games. It's a tough place to go for Everton. But I think we'll kick ourselves if we don't follow on the form we showed on Monday.
"Obviously when you beat a top team like Manchester United, it gives you confidence. There's been a buzz about the place this week and to be honest with you, we all had a feeling before the game that we had a chance of winning. We didn't see it as a fluke.
"Sometimes when a top team comes and you've not beaten them for a long time, you're surprised. But I think our form is good and we're a strong team – it's just about us showing that."