diff --git a/portail_citoyen2/settings.py b/portail_citoyen2/settings.py
index 9d691f4..ee74386 100644
--- a/portail_citoyen2/settings.py
+++ b/portail_citoyen2/settings.py
@@ -200,6 +200,7 @@ else:
     INTERNAL_IPS = ('127.0.0.1')
 
 SECRET_KEY = os.environ.get('SECRET_KEY', '0!=(1kc6kri-ui+tmj@mr+*0bvj!(p*r0duu2n=)7@!p=pvf9n')
+CSRF_COOKIE_SECURE = os.environ.get('CSRF_COOKIE_SECURE') == 'yes'
 
 LOGGING = {
     'version': 1,