diff --git a/.npmignore b/.npmignore
deleted file mode 100644
index ba8d851..0000000
--- a/.npmignore
+++ /dev/null
@@ -1,9 +0,0 @@
-docs
-node_modules
-test
-test-data
-Dockerfile
-.dockerignore
-.github
-.mocharc.yml
-.npmignore
diff --git a/package.json b/package.json
index 8e6640a..f85ea54 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,9 @@
   "version": "2.5.2",
   "description": "Convert / resize / transcode photos & videos to be web-friendly",
   "main": "lib/index.js",
+  "files": [
+    "lib"
+  ],
   "scripts": {
     "test:u": "mocha test/unit",
     "test:i": "mocha test/integration",