diff --git a/frontend/package.json b/frontend/package.json
index c4978c8..9f7246a 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -17,6 +17,7 @@
   "scripts": {
     "start": "react-scripts start",
     "build": "react-scripts build",
+    "postbuild": "cp build/index.html build/404.html",
     "test": "react-scripts test",
     "eject": "react-scripts eject",
     "predeploy": "npm run build",