diff --git a/addons/mrp/views/mrp_workorder_views.xml b/addons/mrp/views/mrp_workorder_views.xml
index 6f13fdcc485..5e89bed4fa0 100644
--- a/addons/mrp/views/mrp_workorder_views.xml
+++ b/addons/mrp/views/mrp_workorder_views.xml
@@ -201,7 +201,7 @@
                             <tree>
                                 <field name="date_start"/>
                                 <field name="date_end"/>
-                                <field name="duration" widget="float_time"/>
+                                <field name="duration" widget="float_time" sum="Total duration"/>
                                 <field name="user_id"/>
                                 <field name="loss_id" string="Efficiency"/>
                             </tree>
@@ -459,4 +459,4 @@
         <field name="view_id" ref="view_work_center_load_graph"/>
         <field name="act_window_id" ref="action_mrp_workcenter_load_report_graph"/>
     </record>
-</odoo>
\ No newline at end of file
+</odoo>