diff --git a/doc/Makefile.am b/doc/Makefile.am
index 1c9dd37..0d01cde 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -18,6 +18,24 @@
# along with this program. If not, see .
##
+## hoxsl documentation Makefile
+#
+# Copyright (C) 2016 Mike Gerwitz
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+##
+
.DELETE_ON_ERROR:
path_src := ../src