diff --git a/package.json b/package.json
index a571807..95ecec0 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,10 @@
 	"version": "3.0.0",
 	"description": "Namecheap DNS for Let's Encrypt / ACME dns-01 challenges with ACME.js and Greenlock.js",
 	"main": "index.js",
+  "files": [
+    "lib",
+    "test.js"
+  ],
 	"scripts": {
 		"test": "node ./test.js"
 	},