diff --git a/addons/point_of_sale/point_of_sale.py b/addons/point_of_sale/point_of_sale.py
index bf3a3e1a900..4893c62c816 100644
--- a/addons/point_of_sale/point_of_sale.py
+++ b/addons/point_of_sale/point_of_sale.py
@@ -1310,7 +1310,7 @@ class product_product(osv.osv):
         'to_weight' : fields.boolean('To Weight', help="Check if the product should be weighted (mainly used with self check-out interface)."),
     }
 
-    def default_pos_categ_id(self, cr, uid, ids, available_in_pos=None, context=None):
+    def onchange_available_pos(self, cr, uid, ids, available_in_pos=None, context=None):
         proxy = self.pool.get('ir.model.data')
         category_id = False
         if ids and available_in_pos:
diff --git a/addons/point_of_sale/point_of_sale_view.xml b/addons/point_of_sale/point_of_sale_view.xml
index a8c306be098..c8920312a5e 100644
--- a/addons/point_of_sale/point_of_sale_view.xml
+++ b/addons/point_of_sale/point_of_sale_view.xml
@@ -614,7 +614,7 @@
             <field name="arch" type="xml">
                 <group name="sale" position="inside">
                     <group name="pos" string="Point of Sale">
-                        <field name="available_in_pos" on_change="default_pos_categ_id(available_in_pos)"/>
+                        <field name="available_in_pos" on_change="onchange_available_pos(available_in_pos)"/>
                         <field name="pos_categ_id"/>
                         <field name="to_weight" />
                         <field name="income_pdt"/>