diff --git a/addons/mrp_operations/mrp_operations_view.xml b/addons/mrp_operations/mrp_operations_view.xml
index 9b8587349bc..4fb6bb18a3f 100644
--- a/addons/mrp_operations/mrp_operations_view.xml
+++ b/addons/mrp_operations/mrp_operations_view.xml
@@ -328,9 +328,8 @@
             <field name="model">mrp.production.workcenter.line</field>
             <field name="arch" type="xml">
                 <graph string="Hours by Work Center" type="bar">
-                     <field name="date_start"/>
-                     <field name="hour" operator="+"/>
-                     <field name="workcenter_id" group="True"/>
+                     <field name="hour" type="measure"/>
+                     <field name="workcenter_id" type="row"/>
                 </graph>
             </field>
         </record>
diff --git a/addons/mrp_operations/report/mrp_workorder_analysis_view.xml b/addons/mrp_operations/report/mrp_workorder_analysis_view.xml
index de486face78..a360e2ee0d1 100644
--- a/addons/mrp_operations/report/mrp_workorder_analysis_view.xml
+++ b/addons/mrp_operations/report/mrp_workorder_analysis_view.xml
@@ -31,9 +31,9 @@
             <field name="name">mrp.workorder.graph</field>
             <field name="model">mrp.workorder</field>
             <field name="arch" type="xml">
-                <graph orientation="horizontal" string="Work Orders" type="bar">
-                    <field name="state"/>
-                    <field name="nbr" operator="+"/>
+                <graph string="Work Orders" type="bar">
+                    <field name="state" type="row"/>
+                    <field name="nbr" type="measure"/>
                 </graph>
             </field>
         </record>