diff --git a/package.json b/package.json
index 57d14c3..91a6ac8 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
   "license": "ISC",
   "main": "index.js",
   "scripts": {
-    "build": "node build.js"
+    "build": "node build.js",
+    "prePublishOnly": "npm run build"
   }
 }