diff --git a/addons/account/models/account_invoice.py b/addons/account/models/account_invoice.py
index a94180f3b04..14075ff0c0d 100644
--- a/addons/account/models/account_invoice.py
+++ b/addons/account/models/account_invoice.py
@@ -1504,8 +1504,10 @@ class AccountInvoice(models.Model):
 
         values['type'] = TYPE2REFUND[invoice['type']]
         values['date_invoice'] = date_invoice or fields.Date.context_today(invoice)
-        if values.get('date_due', False) and values['date_invoice'] > values['date_due']:
-            values['date_due'] = values['date_invoice']
+        if values.get('date_due', False) and values['date_invoice']:
+            # To ensure that the date_invoice is a date object
+            if self._fields['date_invoice'].to_date(values['date_invoice']) > values['date_due']:
+                values['date_due'] = values['date_invoice']
         values['state'] = 'draft'
         values['number'] = False
         values['origin'] = invoice.number