diff --git a/package.json b/package.json
index af7ff1021..018093f87 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "build": "tsc",
     "coveralls": "jest --coverage && cat ./coverage/lcov.info | coveralls",
     "lint": "eslint . --ext .ts",
+    "prepare": "npm run build",
     "start": "node ./bin/server.js -p 3000",
     "test": "jest",
     "watch": "nodemon --watch \"src/**/*.js\" --watch \"bin/**/*.js\" --exec npm start"