diff --git a/trunk/src/app/srs_app_rtc.cpp b/trunk/src/app/srs_app_rtc.cpp
index 0d774a003..bc303c932 100644
--- a/trunk/src/app/srs_app_rtc.cpp
+++ b/trunk/src/app/srs_app_rtc.cpp
@@ -1,7 +1,7 @@
 /**
  * The MIT License (MIT)
  *
- * Copyright (c) 2013-2020 Winlin
+ * Copyright (c) 2013-2020 John
  *
  * 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
diff --git a/trunk/src/app/srs_app_rtc.hpp b/trunk/src/app/srs_app_rtc.hpp
index e763ca550..9cb174abf 100644
--- a/trunk/src/app/srs_app_rtc.hpp
+++ b/trunk/src/app/srs_app_rtc.hpp
@@ -1,7 +1,7 @@
 /**
  * The MIT License (MIT)
  *
- * Copyright (c) 2013-2020 Winlin
+ * Copyright (c) 2013-2020 John
  *
  * 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
diff --git a/trunk/src/app/srs_app_rtc_conn.cpp b/trunk/src/app/srs_app_rtc_conn.cpp
index 07a927394..2598cc33e 100644
--- a/trunk/src/app/srs_app_rtc_conn.cpp
+++ b/trunk/src/app/srs_app_rtc_conn.cpp
@@ -1,7 +1,7 @@
 /**
  * The MIT License (MIT)
  *
- * Copyright (c) 2013-2020 Winlin
+ * Copyright (c) 2013-2020 John
  *
  * 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
diff --git a/trunk/src/app/srs_app_rtc_conn.hpp b/trunk/src/app/srs_app_rtc_conn.hpp
index 532cb89a7..f9ebb931c 100644
--- a/trunk/src/app/srs_app_rtc_conn.hpp
+++ b/trunk/src/app/srs_app_rtc_conn.hpp
@@ -1,7 +1,7 @@
 /**
  * The MIT License (MIT)
  *
- * Copyright (c) 2013-2020 Winlin
+ * Copyright (c) 2013-2020 John
  *
  * 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
diff --git a/trunk/src/app/srs_app_sdp.cpp b/trunk/src/app/srs_app_sdp.cpp
index 6c128c180..0823d35a0 100644
--- a/trunk/src/app/srs_app_sdp.cpp
+++ b/trunk/src/app/srs_app_sdp.cpp
@@ -1,7 +1,7 @@
 /**
  * The MIT License (MIT)
  *
- * Copyright (c) 2013-2020 Winlin
+ * Copyright (c) 2013-2020 John
  *
  * 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
diff --git a/trunk/src/app/srs_app_sdp.hpp b/trunk/src/app/srs_app_sdp.hpp
index 963eb3599..6297acccc 100644
--- a/trunk/src/app/srs_app_sdp.hpp
+++ b/trunk/src/app/srs_app_sdp.hpp
@@ -1,7 +1,7 @@
 /**
  * The MIT License (MIT)
  *
- * Copyright (c) 2013-2020 Winlin
+ * Copyright (c) 2013-2020 John
  *
  * 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
diff --git a/trunk/src/protocol/srs_stun_stack.cpp b/trunk/src/protocol/srs_stun_stack.cpp
index 4330c92f7..6dcea2950 100644
--- a/trunk/src/protocol/srs_stun_stack.cpp
+++ b/trunk/src/protocol/srs_stun_stack.cpp
@@ -1,3 +1,26 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013-2020 John
+ *
+ * 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.
+ */
+
 #include <srs_stun_stack.hpp>
 
 using namespace std;
diff --git a/trunk/src/protocol/srs_stun_stack.hpp b/trunk/src/protocol/srs_stun_stack.hpp
index db74c90b3..dda33c194 100644
--- a/trunk/src/protocol/srs_stun_stack.hpp
+++ b/trunk/src/protocol/srs_stun_stack.hpp
@@ -1,7 +1,7 @@
 /**
  * The MIT License (MIT)
  *
- * Copyright (c) 2013-2020 Winlin
+ * Copyright (c) 2013-2020 John
  *
  * 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
@@ -24,9 +24,10 @@
 #ifndef SRS_PROTOCOL_STUN_HPP
 #define SRS_PROTOCOL_STUN_HPP
 
+#include <srs_core.hpp>
+
 #include <string>
 
-#include <srs_core.hpp>
 #include <srs_kernel_error.hpp>
 
 class SrsBuffer;