diff --git a/fence/models.py b/fence/models.py
index b065cea1a..bfb3fe33a 100644
--- a/fence/models.py
+++ b/fence/models.py
@@ -849,7 +849,7 @@ def migrate(driver):
 AFTER INSERT OR UPDATE OR DELETE ON certificate
     FOR EACH ROW EXECUTE PROCEDURE process_cert_audit();"""
         )
-    
+
     add_column_if_not_exist(
         table_name=Project.__tablename__,
         column=Column("authz", String),