diff --git a/addons/account/models/res_config.py b/addons/account/models/res_config.py
index 16aa3c7ff5c..3ea935bd626 100644
--- a/addons/account/models/res_config.py
+++ b/addons/account/models/res_config.py
@@ -246,8 +246,8 @@ class AccountConfigSettings(models.TransientModel):
                 'purchase_tax_rate': self.purchase_tax_rate,
                 'complete_tax_set': self.complete_tax_set,
                 'currency_id': self.currency_id.id,
-                'bank_account_code_prefix': self.bank_account_code_prefix,
-                'cash_account_code_prefix': self.cash_account_code_prefix,
+                'bank_account_code_prefix': self.bank_account_code_prefix or self.chart_template_id.bank_account_code_prefix,
+                'cash_account_code_prefix': self.cash_account_code_prefix or self.chart_template_id.cash_account_code_prefix,
             })
             wizard.execute()