diff --git a/addons/l10n_be_invoice_bba/invoice.py b/addons/l10n_be_invoice_bba/invoice.py
index 92796d409b9..38187b41e37 100644
--- a/addons/l10n_be_invoice_bba/invoice.py
+++ b/addons/l10n_be_invoice_bba/invoice.py
@@ -227,7 +227,7 @@ class account_invoice(osv.osv):
             required=True, readonly=True),
     }
     _constraints = [
-        (_check_communication, 'Invalid BBA Structured Communication !', ['Communication']),
+        (_check_communication, 'Invalid BBA Structured Communication !', ['reference', 'reference_type']),
         ]
 
 account_invoice()