diff --git a/addons/account_voucher/account_voucher.py b/addons/account_voucher/account_voucher.py
index d942225d70b..949239f8124 100644
--- a/addons/account_voucher/account_voucher.py
+++ b/addons/account_voucher/account_voucher.py
@@ -1498,6 +1498,7 @@ class account_voucher_line(osv.osv):
         'amount_unreconciled': fields.function(_compute_balance, multi='dc', type='float', string='Open Balance', store=True, digits_compute=dp.get_precision('Account')),
         'company_id': fields.related('voucher_id','company_id', relation='res.company', type='many2one', string='Company', store=True, readonly=True),
         'currency_id': fields.function(_currency_id, string='Currency', type='many2one', relation='res.currency', readonly=True),
+        'state': fields.related('voucher_id', 'state', type='char', string='State', readonly=True),
     }
     _defaults = {
         'name': '',
diff --git a/addons/account_voucher/voucher_payment_receipt_view.xml b/addons/account_voucher/voucher_payment_receipt_view.xml
index 073b1efed82..f70f47c54ef 100644
--- a/addons/account_voucher/voucher_payment_receipt_view.xml
+++ b/addons/account_voucher/voucher_payment_receipt_view.xml
@@ -163,10 +163,11 @@
                         	<label for="line_dr_ids"/>
                             <field name="line_dr_ids" context="{'journal_id':journal_id, 'type':type, 'partner_id':partner_id}" on_change="onchange_line_ids(line_dr_ids, line_cr_ids, amount, currency_id, type, context)">
                                 <tree string="Supplier Invoices and Outstanding transactions" editable="bottom" colors="gray:amount==0">
+                                    <field name="state" invisible="1"/>
                                     <field name="move_line_id" context="{'journal_id':parent.journal_id, 'partner_id':parent.partner_id}"
                                         on_change="onchange_move_line_id(move_line_id)"
                                         domain="[('account_id.type','=','payable'), ('reconcile_id','=', False), ('partner_id','=',parent.partner_id)]"
-                                        required="1"/>
+                                        attrs="{'required': [('state', 'in', [False, 'draft'])]}"/>
                                     <field name="account_id" groups="base.group_no_one" domain="[('type','=','payable')]"/>
                                     <field name="date_original" readonly="1"/>
                                     <field name="date_due" readonly="1"/>
@@ -179,10 +180,11 @@
                             <label for="line_cr_ids" attrs="{'invisible': [('pre_line','=',False)]}"/>
                             <field name="line_cr_ids" attrs="{'invisible': [('pre_line','=',False)]}" context="{'journal_id':journal_id, 'partner_id':partner_id}" on_change="onchange_line_ids(line_dr_ids, line_cr_ids, amount, currency_id, type, context)">
                                 <tree string="Credits" editable="bottom" colors="gray:amount==0">
+                                    <field name="state" invisible="1"/>
                                     <field name="move_line_id" context="{'journal_id':parent.journal_id, 'partner_id':parent.partner_id}"
                                         on_change="onchange_move_line_id(move_line_id)"
                                         domain="[('account_id.type','=','payable'), ('reconcile_id','=', False), ('partner_id','=',parent.partner_id)]"
-                                        required="1"/>
+                                        attrs="{'required': [('state', 'in', [False, 'draft'])]}"/>
                                     <field name="account_id" groups="base.group_no_one" domain="[('type','=','payable')]"/>
                                     <field name="date_original" readonly="1"/>
                                     <field name="date_due" readonly="1"/>