diff --git a/tools/cli/dev-bundle-bin-helpers.js b/tools/cli/dev-bundle-bin-helpers.js
index 5f68ef6eb1..873fa30e60 100644
--- a/tools/cli/dev-bundle-bin-helpers.js
+++ b/tools/cli/dev-bundle-bin-helpers.js
@@ -24,6 +24,10 @@ exports.getEnv = function (options) {
 
     var env = Object.create(process.env);
 
+    // This allows node-gyp to find Node headers and libraries in
+    // dev_bundle/.node-gyp.
+    env.USERPROFILE = devBundleDir;
+
     var PATH = env.PATH || env.Path;
     if (PATH) {
       paths.push(PATH);