diff --git a/addons/account/models/account_move.py b/addons/account/models/account_move.py
index 1cefc707687..369667cc0a4 100644
--- a/addons/account/models/account_move.py
+++ b/addons/account/models/account_move.py
@@ -2240,11 +2240,13 @@ class AccountMove(models.Model):
 
         # Create the invoice.
         values = {
+            'name': '/',  # we have to give the name otherwise it will be set to the mail's subject
             'invoice_source_email': from_mail_addresses[0],
             'partner_id': partners and partners[0].id or False,
         }
         move_ctx = self.with_context(default_move_type=custom_values['move_type'], default_journal_id=custom_values['journal_id'])
         move = super(AccountMove, move_ctx).message_new(msg_dict, custom_values=values)
+        move._compute_name()  # because the name is given, we need to recompute in case it is the first invoice of the journal
 
         # Assign followers.
         all_followers_ids = set(partner.id for partner in followers + senders + partners if is_internal_partner(partner))
diff --git a/addons/account/tests/test_account_incoming_supplier_invoice.py b/addons/account/tests/test_account_incoming_supplier_invoice.py
index f845676a34b..373fcbab346 100644
--- a/addons/account/tests/test_account_incoming_supplier_invoice.py
+++ b/addons/account/tests/test_account_incoming_supplier_invoice.py
@@ -57,6 +57,7 @@ class TestAccountIncomingSupplierInvoice(AccountTestInvoicingCommon):
 
         following_partners = invoice.message_follower_ids.mapped('partner_id')
         self.assertEqual(following_partners, self.env.user.partner_id)
+        self.assertRegex(invoice.name, 'BILL/\d{4}/\d{2}/0001')
 
     def test_supplier_invoice_forwarded_by_internal_user_without_supplier(self):
         """ In this test, the bill was forwarded by an employee,