diff --git a/inc/caldav-REPORT-principal.php b/inc/caldav-REPORT-principal.php
index 549f2f0d..57241be3 100644
--- a/inc/caldav-REPORT-principal.php
+++ b/inc/caldav-REPORT-principal.php
@@ -4,6 +4,7 @@ $responses = array();
 
 /**
 * Return XML for a single Principal (user) from the DB
+* TODO: Refactor this functionality into the CalDAVPrincipal object
 *
 * @param array $properties The requested properties for this principal
 * @param string $item The user data for this calendar