diff --git a/fsm_visit_confirmation/models/project_task.py b/fsm_visit_confirmation/models/project_task.py
index d8029c5..3e29fc8 100644
--- a/fsm_visit_confirmation/models/project_task.py
+++ b/fsm_visit_confirmation/models/project_task.py
@@ -17,6 +17,7 @@ class ProjectTask(models.Model):
                 lambda task: task.stage_id != old_stages[task.id]
                 and task.stage_id.approval_template_id
             ):
+                task._portal_ensure_token()
                 task.stage_id.approval_template_id.send_mail(
                     task.id,
                     force_send=True,