diff --git a/entrouvert/djommon/multitenant/middleware.py b/entrouvert/djommon/multitenant/middleware.py
index 49217a1..c6d0c7a 100644
--- a/entrouvert/djommon/multitenant/middleware.py
+++ b/entrouvert/djommon/multitenant/middleware.py
@@ -167,7 +167,7 @@ class DictAdapter(dict):
             raise KeyError
 
 
-class PythonSettingsMiddleware(JSONSettingsMiddleware):
+class PythonSettingsMiddleware(FileBasedTenantSettingBaseMiddleware):
     '''Load settings from a file whose path is given by:
 
             os.path.join(settings.TENANT_BASE % schema_name, 'settings.py')