From 837022c2ad19f7e003920b8c881a86ca98d1673f Mon Sep 17 00:00:00 2001
From: Henry Zhu <hi@henryzoo.com>
Date: Wed, 11 Nov 2015 19:11:03 -0500
Subject: [PATCH] Fix transform-inline-environment-variables - fixes #2991

---
 .../README.md                                     | 15 +++++++++++++++
 .../src/index.js                                  |  2 +-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/packages/babel-plugin-transform-inline-environment-variables/README.md b/packages/babel-plugin-transform-inline-environment-variables/README.md
index 72a315f7c3..167d6c42df 100644
--- a/packages/babel-plugin-transform-inline-environment-variables/README.md
+++ b/packages/babel-plugin-transform-inline-environment-variables/README.md
@@ -2,6 +2,21 @@
 
 Inline environment variables
 
+## Example
+
+### In
+
+```js
+// assuming process.env.NODE_ENV is actually "development"
+process.env.NODE_ENV;
+```
+
+### Out
+
+```js
+"development";
+```
+
 ## Installation
 
 ```sh
diff --git a/packages/babel-plugin-transform-inline-environment-variables/src/index.js b/packages/babel-plugin-transform-inline-environment-variables/src/index.js
index 4e80129c81..c4d30464c0 100644
--- a/packages/babel-plugin-transform-inline-environment-variables/src/index.js
+++ b/packages/babel-plugin-transform-inline-environment-variables/src/index.js
@@ -5,7 +5,7 @@ export default function ({ types: t }) {
         if (path.get("object").matchesPattern("process.env")) {
           let key = path.toComputedKey();
           if (t.isStringLiteral(key)) {
-            return t.valueToNode(process.env[key.value]);
+            path.replace(t.valueToNode(process.env[key.value]));
           }
         }
       }