The cause of death for Cheers star George Wendt is now known. The actor died from cardiac arrest, according to the death certificate obtained by TMZ.

The certificate, released by the Los Angeles County Department of Public Health, lists cardiac arrest, congestive heart failure, coronary artery disease, and hypertension as underlying causes. Additional contributing conditions listed include end-stage renal disease or kidney failure, and hyperlipidemia (high cholesterol).

Wendt died peacefully in his sleep while at home on May 20, according to a family representative. He was 76.

Wendt was on Cheers for the entirety of the show’s epic run from 1982–1993. On a series full of beloved characters, his Norm Peterson was arguably the most beloved, with his entry into a scene announced

See Full Page