diff --git a/addons/account/account.py b/addons/account/account.py
index b7234fbdf6d..2d261ca466d 100644
--- a/addons/account/account.py
+++ b/addons/account/account.py
@@ -1908,7 +1908,7 @@ class account_tax(osv.osv):
         'ref_tax_sign': fields.float('Tax Code Sign', help="Usually 1 or -1."),
         'include_base_amount': fields.boolean('Included in base amount', help="Indicates if the amount of tax must be included in the base amount for the computation of the next taxes"),
         'company_id': fields.many2one('res.company', 'Company', required=True),
-        'description': fields.char('Tax Code',size=32),
+        'description': fields.char('Tax Code'),
         'price_include': fields.boolean('Tax Included in Price', help="Check this if the price you use on the product and invoices includes this tax."),
         'type_tax_use': fields.selection([('sale','Sale'),('purchase','Purchase'),('all','All')], 'Tax Application', required=True)
 
@@ -2828,7 +2828,7 @@ class account_tax_template(osv.osv):
         'ref_base_sign': fields.float('Base Code Sign', help="Usually 1 or -1."),
         'ref_tax_sign': fields.float('Tax Code Sign', help="Usually 1 or -1."),
         'include_base_amount': fields.boolean('Include in Base Amount', help="Set if the amount of tax must be included in the base amount before computing the next taxes."),
-        'description': fields.char('Internal Name', size=32),
+        'description': fields.char('Internal Name'),
         'type_tax_use': fields.selection([('sale','Sale'),('purchase','Purchase'),('all','All')], 'Tax Use In', required=True,),
         'price_include': fields.boolean('Tax Included in Price', help="Check this if the price you use on the product and invoices includes this tax."),
     }