diff --git a/contract/models/contract.py b/contract/models/contract.py
index d419b004b..d4f235b82 100644
--- a/contract/models/contract.py
+++ b/contract/models/contract.py
@@ -438,7 +438,7 @@ class ContractContract(models.Model):
         move_form = Form(
             self.env["account.move"]
             .with_company(self.company_id)
-            .with_context(default_move_type=invoice_type),
+            .with_context(default_move_type=invoice_type, default_name="/"),
             view="contract.view_account_move_contract_helper_form",
         )
         move_form.partner_id = self.invoice_partner_id