diff --git a/trytond/ir/ui/menu.py b/trytond/ir/ui/menu.py
index f2fec7d376..4414c95550 100644
--- a/trytond/ir/ui/menu.py
+++ b/trytond/ir/ui/menu.py
@@ -73,15 +73,15 @@ class UIMenu(OSV):
     "UI menu"
     _name = 'ir.ui.menu'
     _description = __doc__
-    name = fields.Char('Menu', size=64, required=True, translate=True)
+    name = fields.Char('Menu', required=True, translate=True)
     sequence = fields.Integer('Sequence')
     childs = fields.One2Many('ir.ui.menu', 'parent','Childs')
     parent = fields.Many2One('ir.ui.menu', 'Parent Menu', select=1)
     groups = fields.Many2Many('res.group', 'ir_ui_menu_group_rel',
        'menu_id', 'gid', 'Groups')
     complete_name = fields.Function('get_full_name',
-       string='Complete Name', type='char', size=128, order_field='name')
-    icon = fields.selection(ICONS, 'Icon', size=64)
+       string='Complete Name', type='char', order_field='name')
+    icon = fields.selection(ICONS, 'Icon')
     action = fields.Function('get_action', fnct_inv='action_inv',
        type='reference', string='Action',
        selection=[