diff --git a/addons/stock/report/picking.rml b/addons/stock/report/picking.rml
index ecc682dceda..cfc9964ddb9 100644
--- a/addons/stock/report/picking.rml
+++ b/addons/stock/report/picking.rml
@@ -152,6 +152,7 @@
     </blockTable>
   </pto_header>
     <para style="terp_default_8">[[repeatIn(objects,'picking')]] </para>
+    <para style="terp_default_8">[[picking.type == 'out' and setLang(picking.partner_id and picking.partner_id.lang or user.lang) or setLang(user.lang)]]</para>
     <para style="terp_default_9">
       <font color="white"> </font>
     </para>