diff --git a/addons/purchase/report/purchase_report.py b/addons/purchase/report/purchase_report.py
index ac9abaaf590..14c073894b8 100644
--- a/addons/purchase/report/purchase_report.py
+++ b/addons/purchase/report/purchase_report.py
@@ -52,7 +52,7 @@ class report_purchase_order(osv.osv):
         'quantity': fields.float('# of Products', readonly=True),
         'price_total': fields.float('Total Price', readonly=True),
         'price_average': fields.float('Average Price', readonly=True),
-        'count': fields.integer('# of Lines', readonly=True),
+        'nbr': fields.integer('# of Lines', readonly=True),
         'month':fields.selection([('01','January'), ('02','February'), ('03','March'), ('04','April'), ('05','May'), ('06','June'),
                           ('07','July'), ('08','August'), ('09','September'), ('10','October'), ('11','November'), ('12','December')],'Month',readonly=True),
 
@@ -75,7 +75,7 @@ class report_purchase_order(osv.osv):
                     l.product_id,
                     t.categ_id as category_id,
                     sum(l.product_qty*u.factor) as quantity,
-                    count(*),
+                    count(*) as nbr,
                     sum(l.product_qty*l.price_unit) as price_total,
                     (sum(l.product_qty*l.price_unit)/sum(l.product_qty*u.factor))::decimal(16,2) as price_average
                 from purchase_order s
diff --git a/addons/purchase/report/purchase_report_view.xml b/addons/purchase/report/purchase_report_view.xml
index 46aa69a6f29..99bf7cce7cc 100644
--- a/addons/purchase/report/purchase_report_view.xml
+++ b/addons/purchase/report/purchase_report_view.xml
@@ -20,20 +20,19 @@
             <field name="type">tree</field>
             <field name="arch" type="xml">
                 <tree string="Purchase Orders Statistics">
-                    <field name="name"/>
-                    <field name="month"/>
-                    <field name="partner_id"/>
+                	<field name="date"/>
+                	<field name="user_id"/>
+                	<field name="partner_id"/>
                     <field name="product_id"/>
-                    <field name="user_id" invisible="1"/>
-                    <field name="warehouse_id" invisible="1"/>
-                    <field name="category_id" invisible="1"/>
-                    <field name="date" invisible="1"/>
-                    <field name="company_id" invisible="1"/>
-                    <field name="count"/>
                     <field name="quantity"/>
-                    <field name="price_total"/>
-                    <field name="price_average"/>
-                    <field name="state"/>
+                    <field name="nbr" sum="# of Lines"/>
+                    <field name="price_average" avg="Average Price"/>
+                	<field name="price_total" sum="Total Price"/>
+                    <field name="name" invisible="1"/>
+                    <field name="month" invisible="1"/>
+                    <field name="warehouse_id" invisible="1"/>
+                    <field name="company_id" invisible="1"/>
+                    <field name="state" invisible="1"/>
                 </tree>
             </field>
         </record>
@@ -64,13 +63,13 @@
                     default="1"
                     domain="[('state','&lt;&gt;','draft'),('state','&lt;&gt;','cancel')]"/>
                 <separator orientation="vertical"/>
-                <field name="product_id"/>
                 <field name="user_id" widget="selection">
                     <filter icon="terp-purchase"
                         string="My Purchases"
                         domain="[('user_id','=',uid)]"/>
                 </field>
                 <field name="partner_id"/>
+                <field name="product_id"/>
                 <field name="company_id" groups="base.group_multi_company" widget="selection"/>
 				</group>
                 <newline/>
@@ -80,7 +79,6 @@
                     <filter string="Responsible" icon="terp-purchase" context="{'group_by':'user_id'}" default="1"/>
                     <separator orientation="vertical"/>
                     <filter string="Product" icon="terp-purchase" context="{'group_by':'product_id'}"/>
-                    <filter string="Product Category" icon="terp-purchase" context="{'group_by':'category_id'}"/>
                     <filter string="Partner" icon="terp-purchase" context="{'group_by':'partner_id'}"/>
                     <filter string="State" icon="terp-purchase" context="{'group_by':'state'}"/>
                     <separator orientation="vertical"/>