diff --git a/addons/purchase/edi/purchase_order_action_data.xml b/addons/purchase/edi/purchase_order_action_data.xml
index dbd92dbe5dd..fc195f86ee4 100644
--- a/addons/purchase/edi/purchase_order_action_data.xml
+++ b/addons/purchase/edi/purchase_order_action_data.xml
@@ -98,7 +98,7 @@
${object.partner_id.id}
-
+
PO_${(object.name or '').replace('/','_')}
${object.partner_id.lang}