diff --git a/patches/october_2012/find_wrong_voucher.py b/patches/october_2012/find_wrong_voucher.py
index ed9ce9c644b..d2374adb21a 100644
--- a/patches/october_2012/find_wrong_voucher.py
+++ b/patches/october_2012/find_wrong_voucher.py
@@ -9,7 +9,7 @@ def execute():
 	""")
 	
 	for d in vouchers:
-		total_tax = webnotes.conn.sql("""select tax_amount from `tab%s` where name = %s""" %
+		total_tax = webnotes.conn.sql("""select total_tax from `tab%s` where name = %s""" %
 			(d[1], '%s'), d[0])
 		if flt(total_tax[0][0]) != flt(d[3]):
 			print d
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