diff --git a/user/profile/field/checkbox/define.class.php b/user/profile/field/checkbox/define.class.php
index 74e75079bc9..15e72817cb0 100644
--- a/user/profile/field/checkbox/define.class.php
+++ b/user/profile/field/checkbox/define.class.php
@@ -1,4 +1,4 @@
-<?php  //$Id:
+<?php  // $Id$
 
 class profile_define_checkbox extends profile_define_base {
 
diff --git a/user/profile/field/checkbox/field.class.php b/user/profile/field/checkbox/field.class.php
index 21e9ca9596f..09989a40fdc 100644
--- a/user/profile/field/checkbox/field.class.php
+++ b/user/profile/field/checkbox/field.class.php
@@ -1,4 +1,4 @@
-<?php //$Id:
+<?php // $Id$
 
 class profile_field_checkbox extends profile_field_base {