David Duchovny is burying the hatchet with his “X-Files” co-star Gillian Anderson.

Duchovny and Anderson made amends during Tuesday’s episode of Duchovny’s podcast, “Fail Better with David Duchovny,” talking about their strained relationship during their days on the hit Fox television series.

“The part of this conversation that’s most difficult for me is, I think, I would talk about my friendship failure or my companionship failure or just the lead role,” Duchovny told Anderson.

“There was a long time, working on the show, where we just didn’t interact with each other off-camera,” he continued, adding that for the most part, the audience had no idea.

The two, who are now friends, were not close during the filming of “The X-Files.” Duchovny he said, and for that he apologized.

“There was a lot of tension, which apparently didn’t matter to the work,” he said, adding, “I guess we could just go out there and do what we have to do.”

Anderson agreed.

“It’s crazy that we were able to put the different feelings and emotions and attraction and all that stuff on camera, but then not talk to each other for weeks on end,” she said.

Duchovny added that the two “missed a chance” at an earlier friendship.

“I missed a chance…because you’re the only person who knows what I’ve been through and I’m the only person who knows what you’re going through and I didn’t use that.”

He concluded: “It’s nice for me to be able to say ‘I’m sorry’ or ‘I regret’ or ‘I could have done better.’ Because once it’s over, all that’s left is gratitude, and that’s the best place to be.”

The pair also discussed “X-Files” plot twists, the nuances behind each of their characters, the lessons they’ve each learned from parenting, Anderson’s new book “Want” and more.

“The X-Files” ran for nine seasons from 1993 to 2002 and starred Duchovny and Anderson as FBI agents investigating covert supernatural activity.

The series returned in January 2016 for a six-episode 10th season and in January 2018 for a 10-episode 11th season. The series also spawned two films, “The X-Files” in 1998 and “The X-Files: I Want to Believe” in 2008.