diff --git a/addons/purchase/purchase_wizard.xml b/addons/purchase/purchase_wizard.xml
index 7ebee49d99d..4e9c1569e63 100644
--- a/addons/purchase/purchase_wizard.xml
+++ b/addons/purchase/purchase_wizard.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" ?>
 <terp>
 	<data>
-		<wizard string="Merge purchases" multi="True" model="purchase.order" name="purchase.order.merge" />
+		<wizard string="Merge purchases" multi="True" model="purchase.order" name="purchase.order.merge" id="purchase_order_merge"/>
 	</data>
 </terp>