diff --git a/composer.json b/composer.json
index 084f72f..2245b85 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,8 @@
   ],
   "autoload": {
     "classmap": [
-      "src/Client.php"
+      "src/Client.php",
+      "src/Collection.php"
     ]
   },
   "require": {