diff --git a/api/src/Etemplate/Request/Session.php b/api/src/Etemplate/Request/Session.php
index 87b1ff38ec..adbb592298 100644
--- a/api/src/Etemplate/Request/Session.php
+++ b/api/src/Etemplate/Request/Session.php
@@ -59,7 +59,7 @@ class Session extends Etemplate\Request
 	/**
 	 * Private constructor to force the instancation of this class only via it's static factory method read
 	 *
-	 * @param array $id
+	 * @param string|null $id =null
 	 */
 	private function __construct($id=null)
 	{