diff --git a/mondumas/views/parametres.py b/mondumas/views/parametres.py
index 830a260..1306072 100644
--- a/mondumas/views/parametres.py
+++ b/mondumas/views/parametres.py
@@ -653,8 +653,8 @@ def stats_delais(request):
     url = request.route_url('stats_delais', societe = societe)
 
     datefin = date.today()
-    # debut = aujourd'hui - 12 mois
-    datedeb = datefin + relativedelta(months=-12)
+    # debut = aujourd'hui - 11 mois
+    datedeb = datefin + relativedelta(months=-11)
     
     societes = ['PE','ME','PL']
     # si societe a été changé par le user