diff --git a/contract/i18n/contract.pot b/contract/i18n/contract.pot
index e0d30dfe7..e0b87d5e5 100644
--- a/contract/i18n/contract.pot
+++ b/contract/i18n/contract.pot
@@ -2334,6 +2334,13 @@ msgstr ""
 msgid "You must supply a date of next invoice for contract line '%s'"
 msgstr ""
 
+#. module: contract
+#. odoo-python
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "by contract"
+msgstr ""
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "e.g. Contract XYZ"
diff --git a/contract/i18n/es.po b/contract/i18n/es.po
index 04684e3dd..787e7db42 100644
--- a/contract/i18n/es.po
+++ b/contract/i18n/es.po
@@ -2542,6 +2542,13 @@ msgstr ""
 "Debe proporcionar la fecha de la próxima factura para la línea del contrato "
 "'%s'"
 
+#. module: contract
+#. odoo-python
+#: code:addons/contract/models/contract.py:0
+#, python-format
+msgid "by contract"
+msgstr "por el contrato"
+
 #. module: contract
 #: model_terms:ir.ui.view,arch_db:contract.contract_contract_form_view
 msgid "e.g. Contract XYZ"
diff --git a/contract/models/contract.py b/contract/models/contract.py
index 1ad85e4c6..1315b85ac 100644
--- a/contract/models/contract.py
+++ b/contract/models/contract.py
@@ -613,11 +613,13 @@ class ContractContract(models.Model):
     def _add_contract_origin(self, invoices):
         for item in self:
             for move in invoices & item._get_related_invoices():
-                body = Markup(_("%(msg)s by contract: %(contract_link)s")) % {
-                    "msg": move._creation_message(),
-                    "contract_link": item._get_html_link(title=item.display_name),
-                }
-                move.message_post(body=body)
+                translation = _("by contract")
+                move.message_post(
+                    body=Markup(
+                        f"{move._creation_message()} {translation} "
+                        f"{item._get_html_link(title=item.display_name)}."
+                    )
+                )
 
     def _recurring_create_invoice(self, date_ref=False):
         invoices_values = self._prepare_recurring_invoices_values(date_ref)