diff --git a/include/mod_muc.hrl b/include/mod_muc.hrl
new file mode 100644
index 000000000..0d3f7baf7
--- /dev/null
+++ b/include/mod_muc.hrl
@@ -0,0 +1,33 @@
+%%%----------------------------------------------------------------------
+%%% File    : mod_muc.hrl
+%%%
+%%% ejabberd, Copyright (C) 2002-2016   ProcessOne
+%%%
+%%% 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 2 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, write to the Free Software Foundation, Inc.,
+%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+%%%
+%%%----------------------------------------------------------------------
+
+-record(muc_room, {name_host = {<<"">>, <<"">>} :: {binary(), binary()} |
+                                                   {'_', binary()},
+                   opts = [] :: list() | '_'}).
+
+-record(muc_online_room,
+        {name_host = {<<"">>, <<"">>} :: {binary(), binary()} | {'_', '$1'} | '$1' | '_',
+         timestamp = p1_time_compat:timestamp() :: erlang:timestamp() | '_',
+         pid = self() :: pid() | '$1' | '$2' | '_'}).
+
+-record(muc_registered,
+        {us_host = {{<<"">>, <<"">>}, <<"">>} :: {{binary(), binary()}, binary()} | '$1',
+         nick = <<"">> :: binary()}).