diff --git a/src/Forum/Actions/IndexAction.php b/src/Forum/Actions/IndexAction.php
index f5a47f3a8..672061c64 100644
--- a/src/Forum/Actions/IndexAction.php
+++ b/src/Forum/Actions/IndexAction.php
@@ -19,6 +19,7 @@ class IndexAction extends HtmlAction
 
     protected $database;
 
+    // TODO: DatabaseManager should be ConnectionInterface
     public function __construct(Client $apiClient, Actor $actor, DatabaseManager $database, SessionInterface $session)
     {
         $this->apiClient = $apiClient;