diff --git a/account_invoice_reference/__openerp__.py b/account_invoice_reference/__openerp__.py
index a1ac6d03..55c1c480 100644
--- a/account_invoice_reference/__openerp__.py
+++ b/account_invoice_reference/__openerp__.py
@@ -40,9 +40,9 @@ copied in the reference field of the move and move lines.
 
 The approach here is to state simple rules with one concern: consistency.
 The reference of the move lines must be the number of the document at
- their very origin (number of a sales order, of an external document
- like a supplier invoice, ...). The goal is for the accountant to be
- able to trace to the source document from a ledger).
+their very origin (number of a sales order, of an external document
+like a supplier invoice, ...). The goal is for the accountant to be
+able to trace to the source document from a ledger).
 The description of a line should always be... well, a description. Not a number
 or a cryptic reference.