diff --git a/addons/point_of_sale/point_of_sale_workflow.xml b/addons/point_of_sale/point_of_sale_workflow.xml
index 98730bc7980..4daa2d17099 100644
--- a/addons/point_of_sale/point_of_sale_workflow.xml
+++ b/addons/point_of_sale/point_of_sale_workflow.xml
@@ -18,7 +18,7 @@
     <record model="workflow.activity" id="act_paid">
       <field name="wkf_id" ref="wkf_pos"/>
       <field name="name">paid</field>
-      <field name="action">write({'state':'paid'})</field>
+      <field name="action">action_paid()</field>
       <field name="kind">function</field>
     </record>