diff --git a/blocks/moodleblock.class.php b/blocks/moodleblock.class.php
index 7a2e5b6fd1a..c8fbd13f25e 100644
--- a/blocks/moodleblock.class.php
+++ b/blocks/moodleblock.class.php
@@ -1,4 +1,4 @@
-<?php
+<?php  // $Id$
 
 define('BLOCK_TYPE_LIST',    1);
 define('BLOCK_TYPE_TEXT',    2);