diff --git a/md2html.sh b/md2html.sh
index d062eb9..77a4162 100644
--- a/md2html.sh
+++ b/md2html.sh
@@ -1,3 +1,13 @@
+# Copyright 2018 Red Hat, Inc.
+# Author: Václav Doležal <vdolezal@redhat.com>
+# THIS FILE IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+# OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
+#
+# Permission is hereby granted to use or copy this program
+# for any purpose, provided the above notices are retained on all copies.
+# Permission to modify the code and to distribute modified code is granted,
+# provided the above notices are retained, and a notice that the code was
+# modified is included with the above copyright notice.
 for file in "$@"; do
 	pandoc -f markdown_github "${file}" -t asciidoc -o "${file%.md}.tmp.adoc" ||exit $?
 	touch -r "${file}" "${file%.md}.tmp.adoc" ||exit $?