diff --git a/hr_commission/models/commission.py b/hr_commission/models/commission.py
index f6b891f0..2744dff4 100644
--- a/hr_commission/models/commission.py
+++ b/hr_commission/models/commission.py
@@ -212,7 +212,7 @@ class Commission(models.Model):
                     }),
                 ],
             })
-            move.post()
+            move._post()
             commission.write({'state': 'done', 'move_id': move.id})
         return True