diff --git a/packages/react-devtools/app.html b/packages/react-devtools/app.html
index c822764bea5f0..bc85a3c48564e 100644
--- a/packages/react-devtools/app.html
+++ b/packages/react-devtools/app.html
@@ -146,7 +146,7 @@
     </div>
     <script>
       const fs = require('fs');
-      let options;
+      let options = {};
       let useHttps = false;
 
       try {