diff --git a/ghost/html-to-plaintext/package.json b/ghost/html-to-plaintext/package.json
index f4aee57617..f8924db394 100644
--- a/ghost/html-to-plaintext/package.json
+++ b/ghost/html-to-plaintext/package.json
@@ -5,6 +5,10 @@
   "author": "Ghost Foundation",
   "private": true,
   "main": "index.js",
+  "files": [
+    "index.js",
+    "lib"
+  ],
   "scripts": {
     "dev": "echo \"Implement me!\"",
     "test": "NODE_ENV=testing c8 --all --check-coverage --reporter text --reporter cobertura mocha './test/**/*.test.js'",