diff --git a/src/index.coffee b/src/index.coffee
index bd151fc..331ce26 100644
--- a/src/index.coffee
+++ b/src/index.coffee
@@ -1,15 +1,7 @@
-{
-  Manager
-  ReadResult
-} = require './filesystem-manager'
-{
-  FsClient
-} = require './filesystem-fs'
-{
-  S3Bucket
-} = require './filesystem-s3'
-{
-  GoogleStorageClient
-} = require './filesystem-google-storage'
-
-module.exports = {Manager, ReadResult, FsClient, S3Bucket, GoogleStorageClient}
+module.exports = Object.assign(
+  {}
+  require './filesystem-manager'
+  require './filesystem-fs'
+  require './filesystem-s3'
+  require './filesystem-google-storage'
+)