diff --git a/addons/account_edi_ubl_cii/models/account_edi_xml_cii_facturx.py b/addons/account_edi_ubl_cii/models/account_edi_xml_cii_facturx.py
index 32fb0ba4def..3c04849f7d0 100644
--- a/addons/account_edi_ubl_cii/models/account_edi_xml_cii_facturx.py
+++ b/addons/account_edi_ubl_cii/models/account_edi_xml_cii_facturx.py
@@ -88,8 +88,8 @@ class AccountEdiXmlCII(models.AbstractModel):
                          "shall be categorized with an Invoiced item VAT category code (BT-151).")
 
     def _check_non_0_rate_tax(self, vals):
-        for line_vals in vals['tax_details_per_record']:
-            tax_rate_list = line_vals['line'].tax_ids.flatten_taxes_hierarchy().mapped("amount")
+        for line_vals in vals['tax_details']['tax_details_per_record']:
+            tax_rate_list = line_vals.tax_ids.flatten_taxes_hierarchy().mapped("amount")
             if not any([rate > 0 for rate in tax_rate_list]):
                 return _("When the Canary Island General Indirect Tax (IGIC) applies, the tax rate on "
                          "each invoice line should be greater than 0.")