diff --git a/addons/account/account_invoice_view.xml b/addons/account/account_invoice_view.xml
index b41c4db08e9..2ef71e5014f 100644
--- a/addons/account/account_invoice_view.xml
+++ b/addons/account/account_invoice_view.xml
@@ -172,7 +172,7 @@
                             <field name="reference" nolabel="1"/>
                             <field name="date_due"/>
                             <field name="check_total" required="2"/>
-                            <field colspan="4" default_get="{'check_total': check_total, 'invoice_line': invoice_line, 'address_invoice_id': address_invoice_id, 'partner_id': partner_id, 'price_type': 'price_type' in dir() and price_type or False}" name="invoice_line" context="{'type':type}" nolabel="1">
+                            <field colspan="4" default_get="{'check_total': check_total, 'invoice_line': invoice_line, 'address_invoice_id': address_invoice_id, 'partner_id': partner_id, 'price_type': 'price_type' in dir() and price_type or False}" name="invoice_line" context="{'type': type}" nolabel="1">
                                 <tree string="Invoice lines">
                                     <field name="product_id" on_change="product_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.address_invoice_id, parent.currency_id, {'company_id': parent.company_id})"/>
                                     <field domain="[('company_id', '=', parent.company_id), ('journal_id', '=', parent.journal_id), ('type', '&lt;&gt;', 'view')]" name="account_id" on_change="onchange_account_id(parent.fiscal_position,account_id)"/>
@@ -280,7 +280,7 @@
                             <field domain="[('company_id', '=', company_id),('type','=', 'receivable')]" name="account_id" groups="account.group_account_user"/>
                             <field name="name"/>
                             <field name="payment_term" widget="selection"/>
-                            <field colspan="4" name="invoice_line" nolabel="1" widget="one2many_list" context="{'type':type}"/>
+                            <field colspan="4" name="invoice_line" nolabel="1" widget="one2many_list" context="{'type': type}"/>
                             <group col="1" colspan="2">
                                 <field name="tax_line" nolabel="1">
                                     <tree editable="bottom" string="Taxes">
diff --git a/addons/account/invoice.py b/addons/account/invoice.py
index 290be952cee..9cda94efeea 100644
--- a/addons/account/invoice.py
+++ b/addons/account/invoice.py
@@ -1297,7 +1297,7 @@ class account_invoice_line(osv.osv):
         if context.get('type', False):
             doc = etree.XML(res['arch'])
             for node in doc.xpath("//field[@name='product_id']"):
-                if context['type'] in ('in_invoice','in_refund'):
+                if context['type'] in ('in_invoice', 'in_refund'):
                     node.set('domain', "[('purchase_ok', '=', True)]")
                 else:
                     node.set('domain', "[('sale_ok', '=', True)]")