diff --git a/addons/l10n_be_invoice_bba/invoice.py b/addons/l10n_be_invoice_bba/invoice.py
index 854593a87cc..499e6e6c4ac 100644
--- a/addons/l10n_be_invoice_bba/invoice.py
+++ b/addons/l10n_be_invoice_bba/invoice.py
@@ -141,7 +141,7 @@ class account_invoice(osv.osv):
                 elif algorithm == 'random':
                     if not self.check_bbacomm(reference):
                         base = random.randint(1, 9999999999)
-                        bbacomm = str(base).rjust(7, '0')
+                        bbacomm = str(base).rjust(10, '0')
                         base = int(bbacomm)
                         mod = base % 97 or 97
                         mod = str(mod).rjust(2, '0')