diff --git a/addons/procurement/procurement_workflow.xml b/addons/procurement/procurement_workflow.xml
index b4bcd1e1f04..23b0a08af78 100644
--- a/addons/procurement/procurement_workflow.xml
+++ b/addons/procurement/procurement_workflow.xml
@@ -188,14 +188,14 @@
             <field name="act_from" ref="act_make_done"/>
             <field name="act_to" ref="act_done"/>
             <field name="condition">action_check_finished()</field>
-			<field name="trigger_model">stock.move</field>
-            <field name="trigger_expr_id">[move_id.id]</field>            
+            <field name="trigger_model">stock.move</field>
+            <field name="trigger_expr_id">move_id and [move_id.id] or []</field>
         </record>
         <record id="trans_make_done_confirm" model="workflow.transition">
             <field name="act_from" ref="act_make_done"/>
             <field name="act_to" ref="act_cancel"/>
             <field name="condition">check_move_cancel()</field>
         </record>
-    
+
     </data>
 </openerp>