diff --git a/package.json b/package.json
index 5e466915..31a22755 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,10 @@
     "node",
     "module"
   ],
+  "files": [
+    "lib",
+    "index.js"
+  ],
   "scripts": {
     "prepublish": "safe-publish-latest",
     "lint": "eslint .",