diff --git a/html/ops/cancel_wu_action.php b/html/ops/cancel_wu_action.php
index 55e169460f..911bdae786 100644
--- a/html/ops/cancel_wu_action.php
+++ b/html/ops/cancel_wu_action.php
@@ -1,4 +1,5 @@
 <?php
+echo "<!--\$Id$ -->";
 
 // cancel a WU:
 // - mark unsent results as OVER, outcome DIDNT_NEED
diff --git a/html/ops/cancel_wu_form.php b/html/ops/cancel_wu_form.php
index b7e8ec951e..47acf01ead 100644
--- a/html/ops/cancel_wu_form.php
+++ b/html/ops/cancel_wu_form.php
@@ -1,5 +1,6 @@
 <?php
-// use this to create accounts while regular account creation is disabled
+echo "<!--\$Id$ -->";
+// use this to delete workunits that are not wanted
 
 require_once("../inc/util_ops.inc");
 
diff --git a/html/ops/index.php b/html/ops/index.php
index a2558bb4b0..68a934d979 100644
--- a/html/ops/index.php
+++ b/html/ops/index.php
@@ -3,6 +3,9 @@
 require_once("../inc/db_ops.inc");
 require_once("../inc/util_ops.inc");
 
+echo "<!--\$Id$ -->";
+
+
 $config = get_config();
 $cgi_url = parse_config($config, "<cgi_url>");
 $stripchart_cgi_url = parse_config($config, "<stripchart_cgi_url>");