diff --git a/kfet/forms.py b/kfet/forms.py
index 315f9165..8ab301a1 100644
--- a/kfet/forms.py
+++ b/kfet/forms.py
@@ -55,17 +55,16 @@ def default_promo():
     return now.month <= 8 and now.year - 1 or now.year
 
 
-PROMO_CHOICES = [("", "Sans promo")] + [
-    (r, r) for r in range(1980, date.today().year + 1)
-]
+def get_promo_choices():
+    return [("", "Sans promo")] + [(r, r) for r in range(1980, date.today().year + 1)]
 
 
 class AccountForm(forms.ModelForm):
     promo = forms.TypedChoiceField(
-        choices=PROMO_CHOICES,
+        choices=get_promo_choices,
         coerce=int,
         empty_value=None,
-        initial=default_promo(),
+        initial=default_promo,
         required=False,
     )