fixed null issue in recurring invoice
diff --git a/accounts/doctype/sales_invoice/sales_invoice.py b/accounts/doctype/sales_invoice/sales_invoice.py
index a146e93..49b044f 100644
--- a/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/accounts/doctype/sales_invoice/sales_invoice.py
@@ -822,7 +822,9 @@
 				</tr>
 		'''
 	for d in getlist(new_rv.doclist, 'entries'):
-		tbl += '<tr><td>' + d.item_code +'</td><td>' + d.description+'</td><td>' + cstr(d.qty) +'</td><td>' + cstr(d.basic_rate) +'</td><td>' + cstr(d.amount) +'</td></tr>'
+		tbl += '<tr><td>' + cstr(d.item_code) +'</td><td>' + cstr(d.description) + \
+			'</td><td>' + cstr(d.qty) +'</td><td>' + cstr(d.basic_rate) + \
+			'</td><td>' + cstr(d.amount) +'</td></tr>'
 	tbl += '</table>'
 
 	totals ='''<table cellspacing= "5" cellpadding="5"  width = "100%%">