diff --git a/addons/account/models/account_payment.py b/addons/account/models/account_payment.py
index a2e73bbab01..b1d8012329d 100644
--- a/addons/account/models/account_payment.py
+++ b/addons/account/models/account_payment.py
@@ -256,11 +256,13 @@ class account_payment(models.Model):
                 self.partner_type = 'customer'
             elif self.payment_type == 'outbound':
                 self.partner_type = 'supplier'
+            else:
+                self.partner_type = False
         # Set payment method domain
         res = self._onchange_journal()
         if not res.get('domain', {}):
             res['domain'] = {}
-        res['domain']['journal_id'] = self.payment_type == 'inbound' and [('at_least_one_inbound', '=', True)] or [('at_least_one_outbound', '=', True)]
+        res['domain']['journal_id'] = self.payment_type == 'inbound' and [('at_least_one_inbound', '=', True)] or self.payment_type == 'outbound' and [('at_least_one_outbound', '=', True)] or []
         res['domain']['journal_id'].append(('type', 'in', ('bank', 'cash')))
         return res