Billy Joel will take a six-week break from performing to undergo endoscopic sinus surgery, forcing the rescheduling of his Sept. 30 Madison Square Garden concert to Nov. 21 so he can recover from the procedure.

“The procedure will require him to rest his voice and avoid any strenuous activity,” Joel’s spokeswoman said in a statement. “With several weeks of rest, Billy is expected to make a full recovery.”

Joel wrapped up a short European tour on Saturday at Wembley Stadium in London. His next scheduled performance will be Oct. 28 at The Garden.

Though a few years ago Joel, 67, was considering retirement, he credits the allergy shots he started receiving in 2014 with strengthening his voice and changing his mind about calling it quits.

“I’m not so much worried about losing my ability to sing until I get really old,” Joel told Newsday in 2015. “I’m just going to keep going. They want to see me? I’ll play.”

His upcoming surgery is connected to some sinus issues and not his voice.

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By moving the Sept. 30 show to November, September will become the first month without a Joel concert at The Garden since he began his record-breaking residency at the venue in 2014. He has rescheduled only one other Garden residency show, last September, when he delayed his show by a day so Pope Francis could hold mass at the venue.

All tickets purchased for the Sept. 30 concert will be honored on Nov. 21. Those who cannot make the rescheduled date can get refunds at their point of purchase.

Joel currently has sold-out concerts scheduled at The Garden through December. No announcement has been made about whether the residency will continue into 2017, though a new deal is expected in the coming months.