diff --git a/addons/account_edi_ubl_cii/models/account_edi_xml_ubl_20.py b/addons/account_edi_ubl_cii/models/account_edi_xml_ubl_20.py
index 15538143c03..91ca469361d 100644
--- a/addons/account_edi_ubl_cii/models/account_edi_xml_ubl_20.py
+++ b/addons/account_edi_ubl_cii/models/account_edi_xml_ubl_20.py
@@ -521,7 +521,7 @@ class AccountEdiXmlUBL20(models.AbstractModel):
                 'id': invoice.name,
                 'issue_date': invoice.invoice_date,
                 'due_date': invoice.invoice_date_due,
-                'note_vals': [{'note': html2plaintext(invoice.narration)}] if invoice.narration else [],
+                'note_vals': self._get_note_vals_list(invoice),
                 'order_reference': order_reference,
                 'sales_order_id': sales_order_id,
                 'accounting_supplier_party_vals': {
@@ -565,6 +565,9 @@ class AccountEdiXmlUBL20(models.AbstractModel):
 
         return vals
 
+    def _get_note_vals_list(self, invoice):
+        return [{'note': html2plaintext(invoice.narration)}] if invoice.narration else []
+
     def _export_invoice_constraints(self, invoice, vals):
         constraints = self._invoice_constraints_common(invoice)
         constraints.update({