diff --git a/addons/account/models/account_move.py b/addons/account/models/account_move.py
index 373616c90fd..d9f67d13b78 100644
--- a/addons/account/models/account_move.py
+++ b/addons/account/models/account_move.py
@@ -2114,7 +2114,7 @@ class AccountMove(models.Model):
             if move.auto_post and move.date > fields.Date.today():
                 raise UserError(_("This move is configured to be auto-posted on {}".format(move.date.strftime(get_lang(self.env).date_format))))
 
-            move.message_subscribe([p.id for p in [move.partner_id, move.commercial_partner_id] if p not in move.sudo().message_partner_ids])
+            move.message_subscribe([p.id for p in [move.partner_id] if p not in move.sudo().message_partner_ids])
 
             to_write = {'state': 'posted'}
 
diff --git a/addons/account/tests/test_account_move_entry.py b/addons/account/tests/test_account_move_entry.py
index 10c2e9f9600..2678e6524c2 100644
--- a/addons/account/tests/test_account_move_entry.py
+++ b/addons/account/tests/test_account_move_entry.py
@@ -349,12 +349,10 @@ class TestAccountMove(AccountTestInvoicingCommon):
 
         move = self.test_move.with_user(user)
         partner = self.env['res.partner'].create({'name': 'Belouga'})
-        commercial_partner = self.env['res.partner'].create({'name': 'Rorqual'})
         move.partner_id = partner
-        move.commercial_partner_id = commercial_partner
 
         move.post()
-        self.assertEqual(move.message_partner_ids, self.env.user.partner_id | existing_partners | partner | commercial_partner)
+        self.assertEqual(move.message_partner_ids, self.env.user.partner_id | existing_partners | partner)
 
     def test_misc_move_onchange(self):
         ''' Test the behavior on onchanges for account.move having 'entry' as type. '''