diff --git a/weboob/ouiboube.py b/weboob/ouiboube.py
index 2fd98a4a..4e279406 100644
--- a/weboob/ouiboube.py
+++ b/weboob/ouiboube.py
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 """
 
 import os
+from logging import warning
 
 from weboob.modules import ModulesLoader, BackendsConfig
 from weboob.scheduler import Scheduler