diff --git a/addons/account/report/account_invoice_report_view.xml b/addons/account/report/account_invoice_report_view.xml
index ca89cd10852..9fe986d1111 100644
--- a/addons/account/report/account_invoice_report_view.xml
+++ b/addons/account/report/account_invoice_report_view.xml
@@ -30,10 +30,10 @@
                 <field name="nbr" sum="# of Lines"/>
                 <field name="product_qty"/>
                 <field name="reconciled"  sum="# Reconciled"/>
-                <field name="price_average" avg="Average Price"/>
+                <field name="price_average" sum="Average Price"/>
                 <field name="price_total" sum="Total Price"/>
                 <field name="residual"  sum="Total Residual" invisible="not context.get('residual_visible',False)"/>
-                <field name="delay_to_pay"  avg="Avg. Delay To Pay" invisible="not context.get('residual_visible',False)"/>
+                <field name="delay_to_pay"  sum="Avg. Delay To Pay" invisible="not context.get('residual_visible',False)"/>
             </tree>
         </field>
     </record>