diff --git a/account_lock_to_date/models/res_company.py b/account_lock_to_date/models/res_company.py
index 6adc757d1e4..4c19148cf5b 100644
--- a/account_lock_to_date/models/res_company.py
+++ b/account_lock_to_date/models/res_company.py
@@ -68,7 +68,7 @@ def _check_lock_to_dates(self, vals):
             if (
                 old_fiscalyear_lock_to_date
                 and fiscalyear_lock_to_date
-                and fiscalyear_lock_to_date > old_fiscalyear_lock_to_date
+                and fiscalyear_lock_to_date < old_fiscalyear_lock_to_date
             ):
                 raise ValidationError(
                     _(