diff --git a/src/Server/Ratchet.php b/src/Server/Ratchet.php
index 1193855..4b682f0 100644
--- a/src/Server/Ratchet.php
+++ b/src/Server/Ratchet.php
@@ -71,7 +71,8 @@ class Ratchet implements MessageComponentInterface
                     'name'
                 ),
                 SORT_ASC,
-                SORT_STRING | SORT_NATURAL | SORT_FLAG_CASE
+                SORT_STRING | SORT_NATURAL | SORT_FLAG_CASE,
+                $this->_namespaces
             );
         }