diff --git a/lib/server/terminal.js b/lib/server/terminal.js
index d4c21b0c..1430a0c0 100644
--- a/lib/server/terminal.js
+++ b/lib/server/terminal.js
@@ -21,16 +21,16 @@
         ConNum          = 0;
         
     module.exports = function(socket) {
-        var makePty     = function(socket) {
-                onConnection(socket, function(channel, data) {
-                    socket.emit(channel, data);
-                });
-            };
+        Util.checkArgs(arguments, ['socket']);
         
         if (pty)
             socket
                 .of('/terminal')
-                .on('connection', makePty);
+                .on('connection', function(socket) {
+                    onConnection(socket, function(channel, data) {
+                        socket.emit(channel, data);
+                    });
+                });
     };
     
     function onConnection(socket, callback) {