diff --git a/DDDigi/python/dddigi.py b/DDDigi/python/dddigi.py
index f86708c5d416ba74376207a944b4d7040ff634db..28d83b23743f3aed7ffa3b447429b53d4bd1195f 100644
--- a/DDDigi/python/dddigi.py
+++ b/DDDigi/python/dddigi.py
@@ -9,7 +9,7 @@
 #
 # ==========================================================================
 from __future__ import absolute_import, unicode_literals
-from dd4hep_base import *  # noqa: F401
+from dd4hep_base import *  # noqa: F401, F403
 
 
 logger = None