diff --git a/addons/attach/attach.js b/addons/attach/attach.js
index b2cb05c4..c12b5135 100644
--- a/addons/attach/attach.js
+++ b/addons/attach/attach.js
@@ -20,60 +20,60 @@
     }
 })(function (Xterm) {
     Xterm.prototype.attach = function (socket, bidirectional, buffered) {
-      var term = this;
+        var term = this;
 
-      bidirectional = (typeof bidirectional == 'undefined') ? true : bidirectional;
-      this.socket = socket;
+        bidirectional = (typeof bidirectional == 'undefined') ? true : bidirectional;
+        this.socket = socket;
 
-      term._flushBuffer = function () {
-          term.write(term._attachSocketBuffer);
-          term._attachSocketBuffer = null;
-          clearTimeout(term._attachSocketBufferTimer);
-          term._attachSocketBufferTimer = null;
-      };
+        term._flushBuffer = function () {
+            term.write(term._attachSocketBuffer);
+            term._attachSocketBuffer = null;
+            clearTimeout(term._attachSocketBufferTimer);
+            term._attachSocketBufferTimer = null;
+        };
 
-      term._pushToBuffer = function (data) {
-        if (term._attachSocketBuffer) {
-          term._attachSocketBuffer += data;
-        } else {
-          term._attachSocketBuffer = data;
-          setTimeout(term._flushBuffer, 10);
+        term._pushToBuffer = function (data) {
+            if (term._attachSocketBuffer) {
+                term._attachSocketBuffer += data;
+            } else {
+                term._attachSocketBuffer = data;
+                setTimeout(term._flushBuffer, 10);
+            }
+        };
+
+        term._getMessage = function (ev) {
+            if (buffered) {
+                term._pushToBuffer(ev.data);
+            } else {
+                term.write(ev.data);
+            }
+        };
+
+        term._sendData = function (data) {
+            socket.send(data);
+        };
+
+        socket.addEventListener('message', term._getMessage);
+
+        if (bidirectional) {
+            this.on('data', term._sendData);
         }
-      };
 
-      term._getMessage = function (ev) {
-        if (buffered) {
-          term._pushToBuffer(ev.data);
-        } else {
-          term.write(ev.data);
-        }
-      };
-
-      term._sendData = function (data) {
-        socket.send(data);
-      };
-
-      socket.addEventListener('message', term._getMessage);
-
-      if (bidirectional) {
-        this.on('data', term._sendData);
-      }
-
-      socket.addEventListener('close', term.detach.bind(term, socket));
-      socket.addEventListener('error', term.detach.bind(term, socket));
+        socket.addEventListener('close', term.detach.bind(term, socket));
+        socket.addEventListener('error', term.detach.bind(term, socket));
     };
 
     Xterm.prototype.detach = function (socket) {
-      var term = this;
+        var term = this;
 
-      term.off('data', term._sendData);
+        term.off('data', term._sendData);
 
-      socket = (typeof socket == 'undefined') ? term.socket : socket;
+        socket = (typeof socket == 'undefined') ? term.socket : socket;
 
-      if (socket) {
-        socket.removeEventListener('message', term._getMessage);
-      }
+        if (socket) {
+            socket.removeEventListener('message', term._getMessage);
+        }
 
-      delete term.socket;
+        delete term.socket;
     };
 });
\ No newline at end of file