diff --git a/api/dao/hierarchy.py b/api/dao/hierarchy.py
index 2f80b5b1465c4a6e4d8ebb33ed38a2166e84931d..d36f6ef8bb3e2b4f0227f4ac554889c14fb9fd7a 100644
--- a/api/dao/hierarchy.py
+++ b/api/dao/hierarchy.py
@@ -455,6 +455,7 @@ def find_existing_hierarchy(metadata, user=None, site=None):
 
 
 def upsert_bottom_up_hierarchy(metadata, type_='uid', user=None, site=None):
+    # pylint: disable=unused-argument
     group = metadata.get('group', {})
     project = metadata.get('project', {})
     session = metadata.get('session', {})