Nick Jonas’ respiratory illness over the weekend caused the Jonas Brothers to cancel their Zurich, Switzerland concert on Saturday night.

The Jonas Brother explained on Twitter that Nick had been “advised by his doctor not to speak or sing.”

Nick Jonas did give a Twitter update on Sunday morning that he was doing better: “I am happy to tell everyone that I woke up this morning, and I’m already feeling better! Thanks for all the prayers. Can’t wait to rock Bilbao!”