The Scot has a clause included in his contract that, when activated, automatically extends his stay with the London Stadium outfit
David Moyes says he will "make it impossible" for the West Ham board to not extend his 18-month contract after being unveiled as Manuel Pellegrini's replacement.
The 56-year-old is back at the London Stadium for a second spell following the sacking of Pellegrini on Saturday.
Moyes previously guided West Ham to Premier League safety in the 2017-18 season but his contract was not renewed, the London side instead opting to turn to Pellegrini.
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But the Scotsman, who confirmed Alan Irvine will again be part of his backroom team, believes things will be different this time around.