diff --git a/addons/account/wizard/account_invoice_send.py b/addons/account/wizard/account_invoice_send.py
index f1bacc3d9d5..b9aae09e5c8 100644
--- a/addons/account/wizard/account_invoice_send.py
+++ b/addons/account/wizard/account_invoice_send.py
@@ -66,6 +66,7 @@ class AccountInvoiceSend(models.TransientModel):
             else:
                 self.composer_id.composition_mode = 'comment' if len(res_ids) == 1 else 'mass_mail'
                 self.composer_id.template_id = self.template_id.id
+                self._compute_composition_mode()
             self.composer_id.onchange_template_id_wrapper()
 
     @api.onchange('is_email')