The pair has apparently smoothed things over through working on the band's upcoming documentary.

Stevie Nicks and Lindsey Buckingham of Fleetwood Mac perform on TODAY Show on Oct. 9, 2014, in New York.

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Lindsey Buckingham says that looking back on the past has helped him move forward with his Fleetwood Mac bandmates — particularly Stevie Nicks.

In an interview with E! News published Thursday (Aug. 6), the guitarist explained that he and the other members of the iconic rock group have found that their collective work on executing an upcoming Fleetwood Mac documentary has been “a very circular healing process for all of us.”