diff --git a/README.md b/README.md
index d7a45d87..63c22fc8 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,7 @@ A [shadowsocks](http://shadowsocks.org) client for Android, written in Scala.
 * pdnsd: [GPLv3](https://github.com/shadowsocks/shadowsocks-android/blob/master/src/main/jni/pdnsd/COPYING)
 * libev: [GPLv2](https://github.com/shadowsocks/shadowsocks-android/blob/master/src/main/jni/libev/LICENSE)
 * libevent: [BSD](https://github.com/shadowsocks/libevent/blob/master/LICENSE)
+* kcptun: [MIT](https://github.com/xtaci/kcptun)
 
 ### LICENSE
 
diff --git a/src/main/assets/pages/about.html b/src/main/assets/pages/about.html
index e26db438..b9d0fe67 100644
--- a/src/main/assets/pages/about.html
+++ b/src/main/assets/pages/about.html
@@ -296,6 +296,7 @@ along with this program. If not, see <a href="http://www.gnu.org/licenses/">http
     <li>pdnsd: <a href="https://github.com/shadowsocks/shadowsocks-android/blob/master/src/main/jni/pdnsd/COPYING">GPLv3</a></li>
     <li>libev: <a href="https://github.com/shadowsocks/libevent/blob/shadowsocks-android/LICENSE">GPLv2</a></li>
     <li>libevent: <a href="https://github.com/shadowsocks/shadowsocks-android/blob/master/src/main/jni/libevent/LICENSE">BSD</a></li>
+    <li>kcptun: <a href="https://github.com/xtaci/kcptun/commits/master/LICENSE.md">BSD</a></li>
 </ul>
 
 </body>