diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index e3b37cb4fe9..c4add64dde5 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -275,7 +275,7 @@ class purchase_order(osv.osv):
                        'ref_partner_id': po.partner_id.id,
                        'ref_doc1': 'purchase.order,%d' % (po.id,),
                        })
-    def inv_line_create(self,a,ol):
+    def inv_line_create(self, cr, uid, a, ol):
         return (0, False, {
             'name': ol.name,
             'account_id': a,
@@ -313,7 +313,7 @@ class purchase_order(osv.osv):
                     a = self.pool.get('ir.property').get(cr, uid, 'property_account_expense_categ', 'product.category')
                 fpos = o.fiscal_position or False
                 a = self.pool.get('account.fiscal.position').map_account(cr, uid, fpos, a)
-                il.append(self.inv_line_create(a,ol))
+                il.append(self.inv_line_create(cr, uid, a, ol))
 
             a = o.partner_id.property_account_payable.id
             journal_ids = journal_obj.search(cr, uid, [('type', '=','purchase')], limit=1)
diff --git a/addons/purchase_analytic_plans/purchase_analytic_plans.py b/addons/purchase_analytic_plans/purchase_analytic_plans.py
index 689abef8f20..1860b60a319 100644
--- a/addons/purchase_analytic_plans/purchase_analytic_plans.py
+++ b/addons/purchase_analytic_plans/purchase_analytic_plans.py
@@ -43,8 +43,8 @@ class purchase_order(osv.osv):
     _name='purchase.order'
     _inherit='purchase.order'
 
-    def inv_line_create(self,a,ol):
-        res=super(purchase_order,self).inv_line_create(a,ol)
+    def inv_line_create(self, cr, uid, a, ol):
+        res=super(purchase_order,self).inv_line_create(cr, uid, a, ol)
         res[2]['analytics_id']=ol.analytics_id.id
         return res