diff --git a/package.json b/package.json
index 1ce7a826..f7e1d285 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,12 @@
   "bin": {
     "nunjucks-precompile": "./bin/precompile"
   },
-  "main": "index",
+  "main": "index.js",
+  "files": [
+    "bin/**",
+    "browser/**",
+    "src/**"
+  ],
   "nyc": {
     "require": [
       "babel-register"