diff --git a/js/package.json b/js/package.json
index c472cd6..bb3b8a2 100644
--- a/js/package.json
+++ b/js/package.json
@@ -27,6 +27,7 @@
     "build": "tsc -p tsconfig.build.json",
     "typecheck": "tsc -p tsconfig.json --noEmit",
     "test": "vitest run",
+    "prepare": "npm run build",
     "prepublishOnly": "npm run build"
   },
   "devDependencies": {