diff --git a/addons/account_voucher/wizard/account_statement_from_invoice.py b/addons/account_voucher/wizard/account_statement_from_invoice.py
index 5fb3fc22b97..1b921e0ccf4 100644
--- a/addons/account_voucher/wizard/account_statement_from_invoice.py
+++ b/addons/account_voucher/wizard/account_statement_from_invoice.py
@@ -89,11 +89,10 @@ class account_statement_from_invoice_lines(osv.osv_memory):
             voucher_id = voucher_obj.create(cr, uid, voucher_res, context=context)
 
             voucher_line_dict =  {}
-            if result['value']['line_ids']:
-                for line_dict in result['value']['line_ids']:
-                    move_line = line_obj.browse(cr, uid, line_dict['move_line_id'], context)
-                    if line.move_id.id == move_line.move_id.id:
-                        voucher_line_dict = line_dict
+            for line_dict in result['value']['line_cr_ids'] + result['value']['line_dr_ids']:
+                move_line = line_obj.browse(cr, uid, line_dict['move_line_id'], context)
+                if line.move_id.id == move_line.move_id.id:
+                    voucher_line_dict = line_dict
 
             if voucher_line_dict:
                 voucher_line_dict.update({'voucher_id': voucher_id})
@@ -190,4 +189,4 @@ class account_statement_from_invoice(osv.osv_memory):
         }
 
 account_statement_from_invoice()
-# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
\ No newline at end of file
+# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: