diff --git a/lib/downloader.js b/lib/downloader.js
index f8fafc4..47979f2 100644
--- a/lib/downloader.js
+++ b/lib/downloader.js
@@ -16,6 +16,9 @@ function download(url, callback) {
 
     var status = null;
 
+    // download the correct version of the binary based on the platform
+    url = exec(url);
+
     request.get(url, { followRedirect: false }, function(err, res) {
         if (res.statusCode !== 302) {
             return callback(new Error('Did not get redirect for the latest version link. Status: ' + res.statusCode));