diff --git a/l10n_ch_pain_base/models/account_move_line.py b/l10n_ch_pain_base/models/account_move_line.py
index d83d3ae..423fd74 100644
--- a/l10n_ch_pain_base/models/account_move_line.py
+++ b/l10n_ch_pain_base/models/account_move_line.py
@@ -10,7 +10,7 @@ class AccountMoveLine(models.Model):
     def _prepare_payment_line_vals(self, payment_order):
         vals = super(AccountMoveLine, self)._prepare_payment_line_vals(
             payment_order)
-        if self.move_id and self.move_id.partner_bank_id._is_qr_iban():
+        if self.move_id and self.move_id.partner_bank_id and self.move_id.partner_bank_id._is_qr_iban():
             if self.move_id.reference_type == 'isr':
                 vals['local_instrument'] = 'CH01'
             if vals['communication']: