diff --git a/package.json b/package.json
index b1d984d1a..320cf0950 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   "scripts": {
     "bump-version": "node scripts/bump-version.mjs",
     "check-version": "node scripts/bump-version.mjs --check",
-    "prebuild": "mkdir -p plugins/codex/.generated/app-server-types && codex app-server generate-ts --out plugins/codex/.generated/app-server-types",
+    "prebuild": "node -e \"require('node:fs').mkdirSync('plugins/codex/.generated/app-server-types',{recursive:true})\" && codex app-server generate-ts --out plugins/codex/.generated/app-server-types",
     "build": "tsc -p tsconfig.app-server.json",
     "test": "node --test tests/*.test.mjs"
   },