diff --git a/lib/auth.js b/lib/auth.js
index e62e910..61c1aa0 100644
--- a/lib/auth.js
+++ b/lib/auth.js
@@ -15,22 +15,22 @@ function parseXauth( buf )
         var length = buf.unpack('n', offset)[0];
         offset += 2;
         cookie[property] = buf.unpackString(length, offset);
-        offset += length; 
+        offset += length;
     }
 
     while (offset < buf.length)
     {
-        var cookie = {};        
+        var cookie = {};
         var typeToName = {
             256: 'Local',
           65535: 'Wild',
             254: 'Netname',
-            253: 'Krb5Principal', 
+            253: 'Krb5Principal',
             252: 'LocalHost',
-              0: 'Internet', 
-              1: 'DECnet', 
+              0: 'Internet',
+              1: 'DECnet',
               2: 'Chaos',
-              5: 'ServerInterpreted', 
+              5: 'ServerInterpreted',
               6: 'InternetV6'
         };
         cookie.type = buf.unpack('n')[0];
@@ -50,12 +50,12 @@ module.exports = function( display, host, cb )
     var XAuthorityFile = process.env.XAUTHORITY;
     if (!XAuthorityFile)
     {
-        if ( process.platform.match(/win/) ) {
+        if ( process.platform.match(/^win/) ) {
             // http://www.straightrunning.com/XmingNotes/trouble.php
             //
-            // The Xming magic cookie program, xauth (user-based), uses an 
-            // Xauthority file (not the traditional .Xauthority file) in 
-            // the %HOME% directory. To use xauth from Command Processor 
+            // The Xming magic cookie program, xauth (user-based), uses an
+            // Xauthority file (not the traditional .Xauthority file) in
+            // the %HOME% directory. To use xauth from Command Processor
             // e.g. on Windows machine 192.168.0.2 with user colin...
             XAuthorityFile = process.env.USERPROFILE + '\\Xauthority';
         } else {
@@ -65,7 +65,7 @@ module.exports = function( display, host, cb )
 
     fs.readFile(XAuthorityFile, function (err, data) {
 
-        if (err) 
+        if (err)
         {
             if (err.code == 'ENOENT')
             {
@@ -86,6 +86,6 @@ module.exports = function( display, host, cb )
             }
         }
         // throw 'No auth cookie matching display=' + display + ' and  host=' + host;
-        cb( '', '' );            
-    });       
+        cb( '', '' );
+    });
 };