diff --git a/.npmignore b/.npmignore
deleted file mode 100644
index ce6f49a0ce..0000000000
--- a/.npmignore
+++ /dev/null
@@ -1,14 +0,0 @@
-*.log
-/.*/
-/_book/
-/coverage/
-/docs/
-/examples/
-/test/
-/.eslint*
-/.flowconfig
-/.gitignore
-/.npmignore
-/.travis.yml
-/book.json
-/webpack.*
diff --git a/package.json b/package.json
index b547676ad0..552a876290 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,11 @@
   "description": "Predictable state container for JavaScript apps",
   "main": "lib/index.js",
   "jsnext:main": "src/index.js",
+  "files": [
+    "dist",
+    "lib",
+    "src"
+  ],
   "scripts": {
     "clean": "rimraf lib dist coverage",
     "lint": "eslint src test examples",