diff --git a/bin/thread-kill.js b/bin/thread-kill.js
index cba6c10..cd0834d 100644
--- a/bin/thread-kill.js
+++ b/bin/thread-kill.js
@@ -1,7 +1,13 @@
-/**
- * Created by nuintun on 2016/1/14.
+/*!
+ * thread-kill
+ * Date: 2016/1/14
+ * https://github.com/nuintun/command-manager
+ *
+ * Referer: https://github.com/pkrumins/node-tree-kill
  */
 
+'use strict';
+
 var spawn = require('./spawn');
 var exec = require('child_process').exec;
 
@@ -113,4 +119,4 @@ function buildProcessTree(parentPid, tree, pidsToProcess, spawnChildProcessesLis
   };
 
   ps.on('close', onClose);
-}
\ No newline at end of file
+}