diff --git a/shells/browser/shared/deploy.js b/shells/browser/shared/deploy.js
index b1e5dd308d..349c6c8106 100644
--- a/shells/browser/shared/deploy.js
+++ b/shells/browser/shared/deploy.js
@@ -11,7 +11,10 @@ const main = async buildId => {
 
   execSync(`node ${join(root, './build')}`, {
     cwd: __dirname,
-    env: process.env,
+    env: {
+      ...process.env,
+      NODE_ENV: 'production',
+    },
     stdio: 'inherit',
   });