diff --git a/tamper/luanginxwafbypass.py b/tamper/luanginxwafbypass.py
index 3f2982391..f24263941 100644
--- a/tamper/luanginxwafbypass.py
+++ b/tamper/luanginxwafbypass.py
@@ -1,6 +1,11 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+"""
+Copyright (c) 2006-2018 sqlmap developers (http://sqlmap.org/)
+See the file 'LICENSE' for copying permission
+"""
+
 '''
 [+] LUA-Nginx WAFs Bypass (Cloudflare)
 Vulnerability discovered by: Daniel Fariña Hernández