diff --git a/l10n_cn_standard_latest/models/account_move.py b/l10n_cn_standard_latest/models/account_move.py
index 2325d311..2e3839cd 100644
--- a/l10n_cn_standard_latest/models/account_move.py
+++ b/l10n_cn_standard_latest/models/account_move.py
@@ -31,4 +31,4 @@ class AccountMove(models.Model):
             domains.append([('res_model', '=', 'account.bank.statement'), ('res_id', 'in', statement_ids.ids)])
         if payment_ids:
             domains.append([('res_model', '=', 'account.payment'), ('res_id', 'in', payment_ids.ids)])
-        return self.env['ir.attachment'].search_count(expression.OR(domains))
\ No newline at end of file
+        return self.env['ir.attachment'].search_count(expression.OR(domains))