diff --git a/package.json b/package.json
index 91034ab2d9be615c4988f94d38abf0ebec29148f..a40f8b07f6a402c098dc956f1e8e90a6ca7e94b7 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,9 @@
   "author": "Erik Hedenström",
   "license": "MIT",
   "main": "index.js",
+  "files": [
+    "index.js"
+  ],
   "scripts": {
     "test": "node test.js",
     "preversion": "npm test",