Students in San Antonio, Texas jumped into action, saving their teacher’s life after he went into cardiac arrest during their skateboarding club meeting.

Adam Compton, a teacher at MacArthur High School, was with members of the skateboarding club that he sponsors when he went into cardiac arrest on Nov. 7, according to KENS5.

“I was skating real mellow that day, trying to save energy, be able to do some more tomorrow and what I remember is sitting down for a little bit,” Compton told KENS5.

Compton explained he didn’t remember much after that but his students said the 46-year-old had failed a trick and sat down where he later began hyperventilating. The teacher passed out, causing one student to call 9-1-1 while others went to get the school’s athletic trainer, Amanda Boyd.