diff --git a/portail_citoyen/tenant_settings.py b/portail_citoyen/tenant_settings.py
index 34f52ce..d1f7565 100644
--- a/portail_citoyen/tenant_settings.py
+++ b/portail_citoyen/tenant_settings.py
@@ -1,3 +1,5 @@
+import os
+
 # Multitenant settings
 TENANT_MODEL = 'multitenant.Tenant'