Jeremiah Green, drummer and founding member of Modest Mouse, has been diagnosed with cancer.

Green’s mother, Carol Namatame, revealed the news in a Facebook post over the holiday weekend.

“Please send healing vibes for my son, Jeremiah Green, who is battling stage 4 cancer,” the post reads. “He’s is so strong and so brave and hanging in there!”

Modest Mouse hasn’t commented publicly on Green’s condition, though he did miss a number of shows on the band’s recent 25th anniversary The Lonesome Crowded West tour.