After the Battle of Champagne his health became increasingly poor and he had to rest in Britain. On 28 August 1915 he became the chief pilot at the Morane-Saulnier flight school at Le Bourget. On 30 May 1916 he joined a squadron as a pilot. Shortly after his return, at dusk on 30 July 1916, both he and Maxime Lenoir were shot down.