diff --git a/packages/react-scripts/config/env.js b/packages/react-scripts/config/env.js
index 662f704cc5a..d5ad88fefb2 100644
--- a/packages/react-scripts/config/env.js
+++ b/packages/react-scripts/config/env.js
@@ -66,11 +66,11 @@ process.env.NODE_PATH = (process.env.NODE_PATH || '')
 
 // Grab NODE_ENV and REACT_APP_* environment variables and prepare them to be
 // injected into the application via DefinePlugin in Webpack configuration.
-// const REACT_APP = /^BKN_APP_/i;
+const REACT_APP = /^REACT_APP_/i;
 
 function getClientEnvironment(publicUrl) {
   const raw = Object.keys(process.env)
-    // .filter(key => REACT_APP.test(key))
+    .filter(key => REACT_APP.test(key))
     .reduce(
       (env, key) => {
         env[key] = process.env[key];