diff --git a/include/emqttd_internal.hrl b/include/emqttd_internal.hrl
new file mode 100644
index 000000000..fa8440e45
--- /dev/null
+++ b/include/emqttd_internal.hrl
@@ -0,0 +1,31 @@
+%%%-----------------------------------------------------------------------------
+%%% Copyright (c) 2012-2015 eMQTT.IO, All Rights Reserved.
+%%%
+%%% Permission is hereby granted, free of charge, to any person obtaining a copy
+%%% of this software and associated documentation files (the "Software"), to deal
+%%% in the Software without restriction, including without limitation the rights
+%%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+%%% copies of the Software, and to permit persons to whom the Software is
+%%% furnished to do so, subject to the following conditions:
+%%%
+%%% The above copyright notice and this permission notice shall be included in all
+%%% copies or substantial portions of the Software.
+%%%
+%%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+%%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+%%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+%%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+%%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+%%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+%%% SOFTWARE.
+%%%-----------------------------------------------------------------------------
+%%% @doc
+%%% MQTT Internal Header.
+%%%
+%%% @end
+%%%-----------------------------------------------------------------------------
+
+-define(record_to_proplist(Def, Rec),
+        lists:zip(record_info(fields, Def),
+                  tl(tuple_to_list(Rec)))).
+
diff --git a/src/emqttd_client.erl b/src/emqttd_client.erl
index e8a143734..88f71b3cd 100644
--- a/src/emqttd_client.erl
+++ b/src/emqttd_client.erl
@@ -32,7 +32,7 @@
 
 -include("emqttd_protocol.hrl").
 
--include("emqttd_internel.hrl").
+-include("emqttd_internal.hrl").
 
 -behaviour(gen_server).