--- oic/utils/keyio.py.orig	2020-06-06 18:49:44.819104615 +0200
+++ oic/utils/keyio.py	2020-06-06 18:49:47.523182608 +0200
@@ -191,7 +191,7 @@
             args["headers"] = {"If-None-Match": self.etag}
 
         try:
-            logging.debug("KeyBundle fetch keys from: %s", self.source)
+            logger.debug("KeyBundle fetch keys from: %s", self.source)
             r = requests.get(self.source, **args)
         except Exception as err:
             logger.error(err)