Clement overcame a second-set lapse of concentration
Arnaud Clement won the second title of his career with a 6-3 1-6 6-3 win over Fernando Gonzalez.
The Frenchman capitalised on an error-strewn first-set display by Gonzalez but suffered a lapse in concentration in the second set.
However, fired up a patriotic crowd, Clement hit back in the third, clinching the decisive break at 3-2 before serving out for a fine win.
Clement, the fourth seed, claimed his only other title in Lyon in 2000.