In this year’s Doctor Who Christmas special, now revealed to be called Twice Upon A Time, Peter Capaldi will play the Doctor for the last time, before handing the TARDIS over to Jodie Whittaker.

Capaldi has been at San Diego Comic-Con over the weekend, on promotional duties for Doctor Who. And he’s been chatting, in an interview with Entertainment Weekly, about the advice he’s given to his successor as the Doctor.

“I just said enjoy it, because it’s absolutely incredible”, Capaldi said. “She’ll be fabulous. It was lovely to speak to her, and see how much affection she has for the show. She’s going to be brilliant”, he added.

Whittaker is now believed to have filmed her regeneration scene, meaning all the footage for this year’s special is in the proverbial can.

Here’s the full interview at EW.