Ruiz died in August 2011 as a result of complications from a lung infection, having successfully undergone a liver transplant in early 2010 after being diagnosed with a life-threatening tumour. The Presidents of France and Chile both praised him. The Church of Saint George-Paul in Paris held a memorial service which was attended by many notable friends, including Catherine Deneuve, Chiara Mastroianni, Melvil Poupaud, Paulo Branco, Arielle Dombasle, Michel Piccoli and Jorge Edwards. Ruiz's body was then returned to Chile to be buried as specified in his will and a National Day of Mourning was declared in Chile.