diff --git a/js/js-flipper/package.json b/js/js-flipper/package.json
index 33161aee2..934e662b4 100644
--- a/js/js-flipper/package.json
+++ b/js/js-flipper/package.json
@@ -3,6 +3,9 @@
   "title": "JS Flipper Bindings for Web-Socket based clients",
   "version": "0.140.0",
   "main": "lib/index.js",
+  "browser": {
+    "os": false
+  },
   "types": "lib/index.d.ts",
   "description": "Flipper bindings for Node.js and web",
   "scripts": {