diff --git a/lib/vizion.js b/lib/vizion.js
index 2d281e8..ab64e1c 100644
--- a/lib/vizion.js
+++ b/lib/vizion.js
@@ -12,7 +12,7 @@ vizion.analyze = function(argv, cb) {
   var _folder = (argv.folder != undefined) ? argv.folder : '.';
 
   if (process.platform === 'win32' || process.platform === 'win64')
-    return c('vizion is not yet compatible with Windows.');
+    return cb('vizion is not yet compatible with Windows.');
 
   identify(_folder, function(type, folder) {
     if (ALL[type])