Fleetwood Mac announced in October that they would tour in Europe. Three performances were set in Berlin, Dublin, and London.
A first London show was set for 16 June; Fleetwood Mac will now play at Wembley a second time, on 18 June.
Sales for Fleetwood Mac's European tour previously opened last month to strong demand.
Fleetwood Mac also revealed while announcing the new Wembley show that they will welcome the Pretenders as their special guests.
The European tour, which will come after a string of dates in the US (and one in Canada) will feature a new line-up for the group.
Mick Fleetwood, John McVie, Stevie Nicks, and Christine McVie will share the stage with newcomers Mike Campbell and Neil Finn, following Lindsey Buckingham's exit.
Back when the first tour was announced, Fleetwood said in a statement: “Fleetwood Mac has always been about an amazing collection of songs that are performed with a unique blend of talents.
"We jammed with Mike and Neil and the chemistry really worked and let the band realise that this is the right combination to go forward with in Fleetwood Mac style.
"We know we have something new, yet it’s got the unmistakable Mac sound."
The group saluted the arrival of their new members.
“We are thrilled to welcome the musical talents of the calibre of Mike Campbell and Neil Finn into the Mac family. With Mike and Neil, we’ll be performing all the hits that the fans love, plus we’ll be surprising our audiences with some tracks from our historic catalogue of songs,” the band said.
“Fleetwood Mac has always been a creative evolution. We look forward to honouring that spirit on this upcoming tour.”