diff --git a/src/autoload.php b/src/autoload.php
index 7ad8d415..c3f62d5c 100644
--- a/src/autoload.php
+++ b/src/autoload.php
@@ -39,4 +39,5 @@ function register($namespace, $path) {
 }
 
 register('Engine', __DIR__ . '/engine'); 
-register('Addons', __DIR__ . '/addons');
+register('Themes', __DIR__ . '/themes');
+register('Plugins', __DIR__ . '/plugins');