diff --git a/cours/cours_prof.cls b/cours/cours_prof.cls
index 6c52984..a95554a 100644
--- a/cours/cours_prof.cls
+++ b/cours/cours_prof.cls
@@ -149,7 +149,8 @@
 \mdtheorem[style=no_framed]{voc}{Vocabulaire}
 \mdtheorem[style=no_framed]{rmq}{Remarque}
 \mdtheorem[style=framed]{exe}{Exemple}
-\mdtheorem[style=dash_framed]{exo}{Exercice}
+% \mdtheorem[style=dash_framed]{exo}{Exercice}
+\mdtheorem[style=exo]{exo}{Exercice}
 \mdtheorem[style=dash_framed]{app}{Application}
 \mdtheorem[style=dash_framed, theoremseparator={ - }]{met}{Méthode}
 %--%