diff --git a/addons/account/account.py b/addons/account/account.py
index e18df8a0d31..36d0ba0947f 100644
--- a/addons/account/account.py
+++ b/addons/account/account.py
@@ -1964,7 +1964,7 @@ class account_tax(osv.osv):
             elif context.get('type') in ('in_invoice','in_refund'):
                 args += [('type_tax_use','in',['purchase','all'])]
 
-        if context and context.has_key('journal_id'):
+        if context and context.get('journal_id'):
             journal = journal_pool.browse(cr, uid, context.get('journal_id'))
             if journal.type in ('sale', 'purchase'):
                 args += [('type_tax_use','in',[journal.type,'all'])]