diff --git a/lang/js/Makefile.am b/lang/js/Makefile.am
index 4464730f..63cc41bd 100644
--- a/lang/js/Makefile.am
+++ b/lang/js/Makefile.am
@@ -1,31 +1,32 @@
 # Makefile.am for gpgme.js.
 # Copyright (C) 2018 Bundesamt für Sicherheit in der Informationstechnik
 #
 # This file is part of gpgme.js.
 #
 # gpgme.js 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 2 of the License, or
 # (at your option) any later version.
 #
 # gpgme.js 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 Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 # 02111-1307, USA
 
 SUBDIRS = src BrowserTestExtension DemoExtension
 
 EXTRA_DIST = build_extensions.sh \
              jsdoc.conf \
+             jsdoc_index.md \
              .eslintrc.json \
              package.json \
              README \
              unittest_inputvalues.js \
              unittests.js \
              webpack.conf.js \
              webpack.conf_unittests.js