diff --git a/addons/account/account_report.xml b/addons/account/account_report.xml
index 7b574c8960e..d258bb0b140 100644
--- a/addons/account/account_report.xml
+++ b/addons/account/account_report.xml
@@ -20,6 +20,7 @@
             rml="account/report/account_print_invoice.rml"
             string="Invoices"
             attachment="(object.state in ('open','paid')) and ('INV'+(object.number or '').replace('/','')+'.pdf')"
+            attachment_use="True"
             usage="default"
             />
         <report id="account_transfers" model="account.transfer" name="account.transfer" string="Transfers" xml="account/report/transfer.xml" xsl="account/report/transfer.xsl"/>