Michael J. Fox falls on stage during ‘Back to the Future’ panel

Michael J. Fox took a tumble during a “Back to the Future” panel at a fan convention on Sunday.

Fox, 61, attended the Fan Expo in Philadelphia along with his former co-stars from the film franchise for a Q&A at the Pennsylvania Convention Center.

When Fox was introduced to the panel, he bowed to cast members Christopher Lloyd, 84, and Tom Wilson, 64, who were already onstage.

But Fox — was diagnosed with Parkinson’s disease at age 29 in 1991 — seemed to lose his balance and was seen tripping over his feet.

Thankfully, a couch softened the blow with the actor falling onto the furniture rather than the hard ground of the stage. Fox bounced back up from the couch mere moments later, showing the crowd that he was OK and uninjured.

Fox, who played Marty McFly in the “Back to the Future” trilogy, went on to take questions from fans at the convention along with Lloyd, who played Dr. Emmett “Doc” Brown, and Wilson, who portrayed Biff Tannen.

The incident comes shortly after the retired actor shared that his battle with Parkinson’s has gotten “harder.”

“I’m not gonna be 80,” Fox said in an episode of “CBS Sunday Morning.”

“I’m not gonna lie. It’s gettin’ hard, it’s gettin’ harder. It’s gettin’ tougher. Every day it’s tougher,” the “Family Ties” alum shared.

Fox also said that he had undergone surgery to remove a benign tumor on his spine — but the surgery “messed up” his walking, and in turn, he started to “break” other parts of his body, including his arm, elbow, face and hand.

He added that the “big killer” of Parkinson’s is “falling.”

“You don’t die from Parkinson’s. You die with Parkinson’s,” Fox said at the time. “So – so I’ve been – I’ve been thinking about the mortality of it.”

Fox opened the Michael J. Fox Foundation for Parkinson’s Research in 2000 — a move that has helped many find the help and support they need throughout their respective battles with the disease and has raised over $1 billion in research funding.