diff --git a/swh/lister/core/lister_base.py b/swh/lister/core/lister_base.py
index 90a39aa..d8d06eb 100644
--- a/swh/lister/core/lister_base.py
+++ b/swh/lister/core/lister_base.py
@@ -45,7 +45,7 @@ DEFAULT_CONFIG = {
 }
 
 
-class ListerBase(abc.ABC, config.SWHConfig):
+class ListerBase(abc.ABC):
     """Lister core base class.
         Generally a source code hosting service provides an API endpoint
         for listing the set of stored repositories. A Lister is the discovery