An unspecified illness has caused country legend Willie Nelson to reschedule a couple of concert dates and cancel one altogether.

The singer/songwriter (or his social media team) posted this message on Facebook:

“Unfortunately Willie has been feeling under the weather so a couple dates have been rescheduled and one cancelled. Sorry for the inconvenience.”

Here are the concerts that are affected:

10/15 Florence, SC is rescheduled to 4/6/16
10/16 Roanoke, VA is rescheduled to 10/19
10/17 Reading, PA has been Cancelled

“All tickets will be honored for the new dates. Refunds are available at point of purchase for fans who will not be able to attend the new date,” says Nelson’s page.

Congratulations to @WillieNelson & @MerleHaggard for their @CountryMusic nomination for 'Musical Event of the Year'! pic.twitter.com/NrPjTuVXfJ

— Legacy Recordings (@SonyLegacyRecs) October 7, 2015

If you’re worried about Willie, his son says you shouldn’t be. Lukas Nelson posted an update on Facebook, saying his dad is doing great.

“In other news, thanks for the prayers and love for dad, his health issue is minor and he’s doing great, love to all…” he wrote.

In other country stars with health problems news, Dolly Parton recently shot down reports that she’s battling stomach cancer.