diff --git a/browserify-es2015/index.js b/browserify-es2015/index.js
index 02686ec..d834763 100644
--- a/browserify-es2015/index.js
+++ b/browserify-es2015/index.js
@@ -4,6 +4,7 @@ var gulp = require('gulp'),
     babelES2015Preset = require('babel-preset-es2015'),
     browserify = require('browserify'),
     watchify = require('watchify'),
+    envify = require('envify'),
     pretty = require('prettysize'),
     merge = require('lodash.merge'),
     source = require('vinyl-source-stream'),
@@ -45,6 +46,10 @@ module.exports = function(options) {
   var b = browserify(options.src, options.browserifyOptions)
     .transform(babelify, options.babelifyOptions);
 
+  if (options.envifyOptions) {
+    b.transform(envify, options.envifyOptions);
+  }
+
   if (options.watch) {
     b = watchify(b, options.watchifyOptions);
     b.on('update', bundle);
diff --git a/browserify-es2015/package.json b/browserify-es2015/package.json
index 5ed0937..d95fc13 100644
--- a/browserify-es2015/package.json
+++ b/browserify-es2015/package.json
@@ -12,6 +12,7 @@
     "babel-preset-es2015": "^6.6.0",
     "babelify": "^7.2.0",
     "browserify": "^13.0.0",
+    "envify": "^3.4.0",
     "gulp": "^3.9.1",
     "gulp-sourcemaps": "^1.6.0",
     "gulp-uglify": "^1.5.3",