diff --git a/addons/sale/report/sale_report.py b/addons/sale/report/sale_report.py
index 42e090d54e5..e2d9f268132 100644
--- a/addons/sale/report/sale_report.py
+++ b/addons/sale/report/sale_report.py
@@ -92,7 +92,7 @@ class sale_report(osv.osv):
                     s.project_id as analytic_account_id
                 from
                     sale_order s
-                    left join sale_order_line l on (s.id=l.order_id)
+                    join sale_order_line l on (s.id=l.order_id)
                         left join product_product p on (l.product_id=p.id)
                             left join product_template t on (p.product_tmpl_id=t.id)
                     left join product_uom u on (u.id=l.product_uom)