diff --git a/modules/purchase_trade/purchase.xml b/modules/purchase_trade/purchase.xml
index 679343a..bd2e24c 100755
--- a/modules/purchase_trade/purchase.xml
+++ b/modules/purchase_trade/purchase.xml
@@ -156,6 +156,12 @@ this repository contains the full copyright notices and license terms. -->
             <field name="name">mtm_tree</field>
         </record>
 
+        <record model="ir.ui.view" id="price_composition_view_tree">
+            <field name="model">price.composition</field>
+            <field name="type">tree</field>
+            <field name="name">price_composition_tree</field>
+        </record>
+
         <menuitem
             name="Pnl Report"
 	        parent="purchase_trade.menu_global_reporting"
diff --git a/modules/purchase_trade/view/price_composition_tree.xml b/modules/purchase_trade/view/price_composition_tree.xml
new file mode 100644
index 0000000..e0f05c6
--- /dev/null
+++ b/modules/purchase_trade/view/price_composition_tree.xml
@@ -0,0 +1,4 @@
+<tree editable="1">
+    <field name="component"/>
+    <field name="price"/>
+</tree>
\ No newline at end of file
diff --git a/modules/purchase_trade/view/sale_line_form.xml b/modules/purchase_trade/view/sale_line_form.xml
index d428f62..9958482 100755
--- a/modules/purchase_trade/view/sale_line_form.xml
+++ b/modules/purchase_trade/view/sale_line_form.xml
@@ -54,7 +54,7 @@ this repository contains the full copyright notices and license terms. -->
     </xpath>
     <xpath expr="/form/notebook/page[@id='taxes']" position="before">
         <page string="Price composition" col="4" id="pc">
-            <field name="price_composition"/>
+            <field name="price_composition" view_ids="purchase_trade.price_composition_view_tree"/>
         </page>
         <page string="Lots" col="4" id="lots">
             <field name="lots" view_ids="lot.lot_view_tree_sequence"/>