diff --git a/lib/youtube-dl.js b/lib/youtube-dl.js
index 9adf8fd..8703f4c 100644
--- a/lib/youtube-dl.js
+++ b/lib/youtube-dl.js
@@ -95,7 +95,7 @@ function call(video, args1, args2, options, callback) {
 
   var opt = [file, args];
 
-  if (isWin) { opt = ['python', [file].concat(args)]; }
+  if (isWin) { opt = [process.env.PYTHON || 'python', [file].concat(args)]; }
 
   // Call youtube-dl.
   execFile(opt[0], opt[1], options, function(err, stdout, stderr) {