diff --git a/addons/account/account.py b/addons/account/account.py
index f3be0d159ab..9d85b4a9188 100644
--- a/addons/account/account.py
+++ b/addons/account/account.py
@@ -790,7 +790,7 @@ class account_move(osv.osv):
     def button_cancel(self, cr, uid, ids, context={}):
         for line in self.browse(cr, uid, ids, context):
             if not line.journal_id.update_posted:
-                raise osv.except_osv(_('Error !'), _('You can not modify a posted entry of this journal !'))
+                raise osv.except_osv(_('Error !'), _('You can not modify a posted entry of this journal !\nYou should mark the journal to allow canceling entries.'))
         if len(ids):
             cr.execute('update account_move set state=%s where id in ('+','.join(map(str,ids))+')', ('draft',))
         return True
diff --git a/addons/account/wizard/wizard_state_open.py b/addons/account/wizard/wizard_state_open.py
index 87ba88e9157..bab81b33094 100644
--- a/addons/account/wizard/wizard_state_open.py
+++ b/addons/account/wizard/wizard_state_open.py
@@ -47,7 +47,7 @@ class wiz_state_open(wizard.interface):
     states = {
         'init': {
             'actions': [],
-            'result': {'type':'form', 'arch':form, 'fields':fields, 'state':[('yes','Yes'),('end','No')]}
+            'result': {'type':'form', 'arch':form, 'fields':fields, 'state':[('end','No','gtk-no'),('yes','Yes','gtk-yes')]}
         },
         'yes': {
             'actions': [_change_inv_state],