diff --git a/weboob/core/modules.py b/weboob/core/modules.py
index 3015cb3d..93582269 100644
--- a/weboob/core/modules.py
+++ b/weboob/core/modules.py
@@ -25,6 +25,9 @@ from weboob.tools.backend import BaseBackend
 from weboob.tools.log import getLogger
 
 
+__all__ = ['Module', 'ModulesLoader', 'RepositoryModulesLoader', 'ModuleLoadError']
+
+
 class ModuleLoadError(Exception):
     def __init__(self, module_name, msg):
         Exception.__init__(self, msg)