diff --git a/view/work_form.xml b/view/work_form.xml
index 2efe9b55a3..3872ca0351 100644
--- a/view/work_form.xml
+++ b/view/work_form.xml
@@ -2,7 +2,7 @@
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
 <data>
-    <xpath expr="/form/notebook/page[@id='general']/field[@name='effort']"
+    <xpath expr="/form/notebook/page[@id='general']/field[@name='effort_duration']"
         position="after">
         <label name="product"/>
         <field name="product"/>
diff --git a/work.py b/work.py
index 43cc1627c4..bd050a891c 100644
--- a/work.py
+++ b/work.py
@@ -94,7 +94,7 @@ class Work:
 
         def getter(work):
             if work.list_price:
-                return work.list_price * Decimal(str(work.effort))
+                return work.list_price * Decimal(str(work.effort_hours))
             else:
                 return Decimal(0)