diff --git a/addons/account/account_invoice.py b/addons/account/account_invoice.py
index 2c59fe26bf0..f255b6788ee 100644
--- a/addons/account/account_invoice.py
+++ b/addons/account/account_invoice.py
@@ -1145,6 +1145,11 @@ class account_invoice(osv.osv):
         return self.name_get(cr, user, ids, context)
 
     def _refund_cleanup_lines(self, cr, uid, lines, context=None):
+        """Convert records to dict of values suitable for one2many line creation
+
+            :param list(browse_record) lines: records to convert
+            :return: list of command tuple for one2many line creation [(0, 0, dict of valueis), ...]
+        """
         clean_lines = []
         for line in lines:
             clean_line = {}
diff --git a/addons/account/wizard/account_invoice_refund.py b/addons/account/wizard/account_invoice_refund.py
index 54d6c38a353..2d95687ff2d 100644
--- a/addons/account/wizard/account_invoice_refund.py
+++ b/addons/account/wizard/account_invoice_refund.py
@@ -183,9 +183,9 @@ class account_invoice_refund(osv.osv_memory):
                                     'journal_id', 'period_id'], context=context)
                         invoice = invoice[0]
                         del invoice['id']
-                        invoice_lines = inv_line_obj.read(cr, uid, invoice['invoice_line'], context=context)
+                        invoice_lines = inv_line_obj.browse(cr, uid, invoice['invoice_line'], context=context)
                         invoice_lines = inv_obj._refund_cleanup_lines(cr, uid, invoice_lines)
-                        tax_lines = inv_tax_obj.read(cr, uid, invoice['tax_line'], context=context)
+                        tax_lines = inv_tax_obj.browse(cr, uid, invoice['tax_line'], context=context)
                         tax_lines = inv_obj._refund_cleanup_lines(cr, uid, tax_lines)
                         invoice.update({
                             'type': inv.type,