Bill Wyman, the former bassist of the Rolling Stones, has been diagnosed with prostate cancer. The 72-year-old Wyman, who played with the Stones from 1962 to 1993, expects to make a full recovery, as Rolling Stone reports. Wyman’s Twitter page reported his diagnosis to fans this morning:

Bill has been diagnosed with cancer.
He is undergoing treatment and is expected to make a full recovery as it was caught at an early stages.

— Bill Wyman (@bill_wyman) March 8, 2016

Wyman wasn’t the Stones’ founding bassist, but he got his start with the band very early, and he was there through the entire classic era, finally leaving after the Steel Wheels tour, and he reunited with the band at a 2012 show in London. Since leaving the band, he’s led a band called the Rhythm Kings, and he’s also published two memoirs about his time with the Stones. He released the solo album Back To Basics last year, and he reportedly attended Mick Jagger’s ex-wife Jerry Hall’s wedding to Rupert Murdoch on Saturday, showing no signs of illness.