diff --git a/suivi/views.py b/suivi/views.py
index ea2581d..67b11c0 100644
--- a/suivi/views.py
+++ b/suivi/views.py
@@ -1,4 +1,4 @@
-from django.shortcuts import render, reverse, redirect
+from django.shortcuts import reverse, redirect
 from django.views import generic
 from django.utils import timezone
 
diff --git a/sujets/forms.py b/sujets/forms.py
index a040c4b..fe51717 100644
--- a/sujets/forms.py
+++ b/sujets/forms.py
@@ -5,7 +5,7 @@ from .models import Sujet
 import datetime
 
 current_year = datetime.date.today().year
-YEAR_CHOICE = (year - 2 for year in range(current_year, current_year + 10))
+YEAR_CHOICE = tuple(year - 2 for year in range(current_year, current_year + 10))
 
 class SujetCreateForm(ModelForm):
     class Meta: