diff --git a/management/commands/check_consistency.py b/management/commands/check_consistency.py
index 9e0b328..71a39c6 100644
--- a/management/commands/check_consistency.py
+++ b/management/commands/check_consistency.py
@@ -29,7 +29,7 @@ class Command(BaseCommand):
                 self.stdout.write(self.style.SUCCESS("La somme des notes vaut bien zéro."))
 
         notes = None
-        if options["check-all"]:
+        if options["check_all"]:
             notes = Note.objects.all()
         elif options["check"]:
             notes = Note.objects.filter(pk__in=options["check"])