diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index a6a5f3e75de..ec4fc5c9dcf 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -163,7 +163,6 @@ class purchase_order(osv.osv):
         'state': {
             'purchase.mt_rfq_confirmed': lambda self, cr, uid, obj, ctx=None: obj['state'] == 'confirmed',
             'purchase.mt_rfq_approved': lambda self, cr, uid, obj, ctx=None: obj['state'] == 'approved',
-            'purchase.mt_rfq_invoice_paid': lambda self, cr, uid, obj, ctx=None: obj['state'] == 'done',
         },
     }
     _columns = {
@@ -1192,7 +1191,7 @@ class mail_compose_message(osv.Model):
 
 class account_invoice(osv.Model):
     _inherit = 'account.invoice'
-    
+
     def invoice_validate(self, cr, uid, ids, context=None):
         po_ids = self.pool.get('purchase.order').search(cr,uid,[('invoice_ids','in',ids)],context)
         res = super(account_invoice, self).invoice_validate(cr, uid, ids, context=None)
diff --git a/addons/purchase/purchase_data.xml b/addons/purchase/purchase_data.xml
index a08e221053e..ceb43ba281a 100644
--- a/addons/purchase/purchase_data.xml
+++ b/addons/purchase/purchase_data.xml
@@ -60,10 +60,6 @@
             <field name="default" eval="False"/>
             <field name="res_model">purchase.order</field>
         </record>
-        <record id="mt_rfq_invoice_paid" model="mail.message.subtype">
-            <field name="name">Invoice Paid</field>
-            <field name="default" eval="False"/>
-            <field name="res_model">purchase.order</field>
-        </record>
+
     </data>
 </openerp>