diff --git a/lib/bundle.js b/lib/bundle.js
index a517c8a..8553741 100644
--- a/lib/bundle.js
+++ b/lib/bundle.js
@@ -57,8 +57,10 @@ function bundle (input, nc, complete) {
   })
 
   ws.on('close', function() {
-    // may need to be added later
-    // source = source.replace(/[^\x00-\x7F]/g, "");
+    var source = fs.readFileSync(bundlePath, 'utf8');
+    source = source.replace(/[^\x00-\x7F]/g, "");
+    fs.writeFileSync(bundlePath, source, 'utf8');
+
     complete();
   })
 }