diff --git a/package.json b/package.json
index b5112e3..0540f4b 100644
--- a/package.json
+++ b/package.json
@@ -5,8 +5,8 @@
   "main": "dist/react-section.min.js",
   "scripts": {
     "dev": "webpack-dev-server --inline --hot --content-base demo/",
-    "build": "export WEBPACK=prod && babel-node scripts/build",
-    "build.demo": "export WEBPACK=demo && webpack",
+    "build": "WEBPACK=prod babel-node scripts/build",
+    "build.demo": "WEBPACK=demo webpack",
     "test": "nyc ava -v",
     "test.watch": "nyc ava -vw",
     "test.ui": "nightwatch",
diff --git a/webpack.config.js b/webpack.config.js
index 2aa6a9f..90d09ce 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -1,6 +1,7 @@
-const isDemo = process.env.WEBPACK === 'demo'
-const isDev = !process.env.WEBPACK
-const isProd = process.env.WEBPACK === 'prod'
+const webpackEnv = process.env.WEBPACK
+const isDemo = webpackEnv === 'demo'
+const isDev = !webpackEnv
+const isProd = webpackEnv === 'prod'
 
 const webpack = require('webpack')
 const ExtractText = require('extract-text-webpack-plugin')