diff --git a/package.json b/package.json
index 4f525906f..6608d5491 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     },
     "scripts": {
         "start": "react-scripts start",
-        "build": "react-scripts build",
+        "build": "PUBLIC_URL=/unit-demo-cra/ react-scripts build",
         "eject": "react-scripts eject",
         "test": "react-scripts test",
         "e2e": "playwright test --project=chromium",