From 406b2fbf6a8d7b6b8bd833722871eb64f732a968 Mon Sep 17 00:00:00 2001
From: Dan O'Brien <dobrien.nj@gmail.com>
Date: Wed, 17 May 2017 21:33:17 -0400
Subject: [PATCH] update README for PR 640 (#651)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index aaa05adb3..8d937a9e9 100644
--- a/README.md
+++ b/README.md
@@ -83,7 +83,7 @@ You can run individual test suites as follows.
 2. Have a JavaScript file handy that you want to prepack, for example:  
    `echo "function hello() { return 'hello'; } function world() { return 'world'; } s = hello() + ' ' + world();" >/tmp/sample.js`
 
-3. `npm run prepack /tmp/sample.js`  
+3. `cat /tmp/sample.js | npm run prepack`  
    Try `--help` for more options.
 
 ## How to validate changes