diff --git a/bgpranking/ranking.py b/bgpranking/ranking.py
index 7d54c1c..2b7e1f5 100644
--- a/bgpranking/ranking.py
+++ b/bgpranking/ranking.py
@@ -16,6 +16,7 @@ class Ranking():
         self.storage = StrictRedis(unix_socket_path=get_socket_path('storage'), decode_responses=True)
         self.ranking = StrictRedis(unix_socket_path=get_socket_path('storage'), db=1, decode_responses=True)
         self.asn_meta = StrictRedis(unix_socket_path=get_socket_path('storage'), db=2, decode_responses=True)
+        self.config_dir = config_dir
 
     def __init_logger(self, loglevel):
         self.logger = logging.getLogger(f'{self.__class__.__name__}')
@@ -72,7 +73,7 @@ class Ranking():
         r_pipeline.execute()
 
     def compute(self):
-        self.config_files = load_config_files(config_dir)
+        self.config_files = load_config_files(self.config_dir)
         self.logger.info('Start ranking')
         set_running(self.__class__.__name__)
         if not self.asn_meta.exists('v4|last') or not self.asn_meta.exists('v6|last'):