diff --git a/account_credit_control/migrations/9.0.1.0.0/pre-migrate.py b/account_credit_control/migrations/9.0.1.0.0/pre-migrate.py
index 252955486..ed8cc9c7b 100644
--- a/account_credit_control/migrations/9.0.1.0.0/pre-migrate.py
+++ b/account_credit_control/migrations/9.0.1.0.0/pre-migrate.py
@@ -4,6 +4,7 @@
 
 from openupgradelib import openupgrade
 
+
 @openupgrade.migrate(use_env=True)
 def migrate(env, version):
     if not openupgrade.table_exists(env.cr, 'account_followup_followup'):