diff --git a/addons/account_voucher/account_voucher.py b/addons/account_voucher/account_voucher.py
index 4b459ddba92..5411fcd14da 100644
--- a/addons/account_voucher/account_voucher.py
+++ b/addons/account_voucher/account_voucher.py
@@ -149,13 +149,15 @@ class account_voucher(osv.osv):
         return res
 
     def test_paid(self, cr, uid, ids, context):
-        recs = []
-        paid = False
+        ok = False
         for voucher in self.browse(cr, uid, ids, context=context):
-            for line in voucher.move_ids:
-                if (line.account_id.type, 'in', ('receivable', 'payable')) and line.reconcile_id:
-                    paid = True
-        return paid
+            if voucher.pay_now == 'pay_later':
+                for line in voucher.move_ids:
+                    if (line.account_id.type, 'in', ('receivable', 'payable')) and line.reconcile_id:
+                        ok = True
+            elif voucher.pay_now == 'pay_now' and voucher.state == 'posted':
+                ok = True
+        return ok
 
     def _compute_writeoff_amount(self, cr, uid, line_dr_ids, line_cr_ids, amount):
         debit = credit = 0.0