diff --git a/views/product.xml b/views/product.xml
index bc15a49bb1e9c939db94d8faa8d2457a3a046217..69cd72fddee56593e7750e5dac3cdc774699293e 100644
--- a/views/product.xml
+++ b/views/product.xml
@@ -50,7 +50,7 @@
                 </field>
                 <field name="uom_po_id" position="after">
                     <field name="expense_gap" />
-                    <field name="is_ik" widget="boolean_toggle" attrs="{'invisible':[('expense_formula','!=','fixed_price')],]}"/>
+                    <field name="is_ik" widget="boolean_toggle" attrs="{'invisible':[('expense_formula','!=','fixed_price')]}"/>
                     <field name="ur_id" options="{'no_open': True, 'no_create': True}"/>
                 </field>
             </field>