diff --git a/addons/l10n_ch/wizard/setup_wizards.py b/addons/l10n_ch/wizard/setup_wizards.py
index 658f15bd600..efc2b6ac19a 100644
--- a/addons/l10n_ch/wizard/setup_wizards.py
+++ b/addons/l10n_ch/wizard/setup_wizards.py
@@ -18,4 +18,5 @@ class SwissSetupBarBankConfigWizard(models.TransientModel):
 
     @api.depends('partner_id', 'company_id')
     def _compute_l10n_ch_display_qr_bank_options(self):
-        self.res_partner_bank_id._compute_l10n_ch_display_qr_bank_options(self)
+        for wizard in self:
+            wizard.l10n_ch_display_qr_bank_options = wizard.res_partner_bank_id.l10n_ch_display_qr_bank_options