diff --git a/apps/emqtt/test/emqtt_packet_tests.erl b/apps/emqtt/test/emqtt_packet_tests.erl
index de520f777..f561a86b4 100644
--- a/apps/emqtt/test/emqtt_packet_tests.erl
+++ b/apps/emqtt/test/emqtt_packet_tests.erl
@@ -1,3 +1,24 @@
+%%-----------------------------------------------------------------------------
+%% Copyright (c) 2012-2015, Feng Lee <feng@emqtt.io>
+%% 
+%% 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.
+%%------------------------------------------------------------------------------
 -module(emqtt_packet_tests).
 
 -ifdef(TEST).
diff --git a/apps/emqtt/test/emqtt_topic_tests.erl b/apps/emqtt/test/emqtt_topic_tests.erl
index 7b949c6b7..6c353c4d4 100644
--- a/apps/emqtt/test/emqtt_topic_tests.erl
+++ b/apps/emqtt/test/emqtt_topic_tests.erl
@@ -1,3 +1,24 @@
+%%-----------------------------------------------------------------------------
+%% Copyright (c) 2012-2015, Feng Lee <feng@emqtt.io>
+%% 
+%% 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.
+%%------------------------------------------------------------------------------
 
 -module(emqtt_topic_tests).