diff --git a/l10n_fr_chorus_account/models/account_move.py b/l10n_fr_chorus_account/models/account_move.py
index 42a3892cf..c3aa1948a 100644
--- a/l10n_fr_chorus_account/models/account_move.py
+++ b/l10n_fr_chorus_account/models/account_move.py
@@ -262,7 +262,7 @@ def _chorus_check_validity(self):
                         % cpartner.display_name
                     )
                 else:
-                    self.chorus_invoice_check_commitment_number()
+                    self.chorus_invoice_check_commitment_number(commitment_number)
         self._chorus_check_payment_data()
 
     def _chorus_check_payment_data(self):