From 01413e51530ffb41ff4559008882c58b7ac7d2bc Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Sat, 11 Oct 2014 22:40:09 +1100
Subject: [PATCH] recapture stack trace in case the stack was built prior

---
 lib/6to5/util.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/6to5/util.js b/lib/6to5/util.js
index f303c0ccc8..afcfa15e20 100644
--- a/lib/6to5/util.js
+++ b/lib/6to5/util.js
@@ -209,6 +209,7 @@ exports.parse = function (opts, code, callback) {
     if (!err._6to5) {
       err._6to5 = true;
       err.message = opts.filename + ": " + err.message;
+      Error.captureStackTrace(err);
       if (err.lineNumber) {
         var frame = exports.codeFrame(code, err.lineNumber, err.column);
         err.message = err.message + frame;