Jordan Pickford has signed a new Everton contract, keeping him at Goodison Park until 2027.
Reports this week had suggested an agreement with Pickford was close and claimed there would be no relegation clause in the new deal.
Everton have won two of their first three Premier League matches under new manager Sean Dyche but remain firmly in a relegation battle, a point clear of the bottom three in 16th place.
However, that precarious position has not put off Pickford, whose four-and-a-half-year contract was announced on Friday.
Pickford told Everton's club media: "It's massive to sign this new contract at such a special club for me.
"The support I've had from everyone at the club since I joined as a 22-year-old has been so important to my family and me.
"I'm happy here and so are my family. We love it at Everton."
Pickford has been England's starting goalkeeper at their past three major tournaments – the first of those the 2018 World Cup.
That came at the end of Pickford's first season at Everton after joining from boyhood club Sunderland for £30million following their relegation.
Everton finished eighth in 2017-18 – one of three top-half finishes in Pickford's first four campaigns – but last season was a struggle as the club came 16th.
"Everton is a massive club," Pickford added. "The past few seasons have not been what we wanted.
"But we now have a manager who I believe will point us in the right direction and get us up the table. It's definitely my aim to be successful at this club."
Pickford was crucial to keeping Everton up last season, pulling off a string of brilliant saves in huge wins over Chelsea and Leicester City in May.
He carried that form into the new campaign, but he was unable to make the stops to ensure Frank Lampard survived a year in the job.
Based on Opta's xGOT model (expected goals on target), Pickford still has a positive goals prevented figure (1.8), which ranks him seventh in the league out of goalkeepers to have played at least one game.
England team-mate Nick Pope is ahead of him (2.9), while Liverpool's Alisson tops the charts with 9.8 goals prevented in the top flight this term.
Everton and Pickford welcome Aston Villa to Goodison Park on Saturday as Dyche aims to win a third straight home game.