diff --git a/openerp/addons/base/res/res_partner.py b/openerp/addons/base/res/res_partner.py
index 9ad1738d467..0e31d4736d7 100644
--- a/openerp/addons/base/res/res_partner.py
+++ b/openerp/addons/base/res/res_partner.py
@@ -353,12 +353,9 @@ class res_partner(osv.osv, format_address):
         if not ids:
             return True
         res_user = self.pool.get('res.users')
-        user_ids = res_user.search(cr, uid, [('partner_id', '=', ids)], context=context)
-        if user_ids:
-            raise osv.except_osv(_('Error!'),
-                    _('You can not delete partner because there is some related user to this partner'))
-        res = super(res_partner,self).unlink(cr, uid, ids, context=context)
-        return res
+        res_id = res_user.search(cr, uid, [('partner_id', '=', ids)], context=context)
+        res_user.unlink(cr, uid, res_id)
+        return super(res_partner,self).unlink(cr, uid, ids, context=context)
 
     def write(self, cr, uid, ids, vals, context=None):
         # Update parent and siblings or children records