diff --git a/lib/server/socket.js b/lib/server/socket.js
index caf20c4b..ff7f7816 100644
--- a/lib/server/socket.js
+++ b/lib/server/socket.js
@@ -16,6 +16,7 @@
         ClientFuncs     = [],
         OnMessageFuncs  = [],
         INFO_LOG_LEVEL  = 2,
+        HOME            = process.env.HOME,
         WIN32           = main.WIN32,
         HELP            = {
             stdout  : CLOUDCMD + ' exit     \n' +
@@ -266,14 +267,13 @@
     }
     
     function onCD(pCommand) {
-        var lRet, lDir, lHome, lError,
+        var lRet, lDir, lError,
             lMsg    = '';
         
         lDir        = Util.removeStr(pCommand, 'cd ');
-        lHome       = process.env.HOME;
         
         if (Util.isContainStr(lDir, '~'))
-            lDir    = Util.replaceStr(lDir, '~', lHome);
+            lDir    = Util.replaceStr(lDir, '~', HOME);
         
         lError      = Util.tryCatchLog(function() {
             process.chdir(lDir);