diff --git a/reference/mbstring/functions/mb-ereg-replace-callback.xml b/reference/mbstring/functions/mb-ereg-replace-callback.xml
index 982b456aa0..d0d36de7af 100644
--- a/reference/mbstring/functions/mb-ereg-replace-callback.xml
+++ b/reference/mbstring/functions/mb-ereg-replace-callback.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- $Revision: 288721 $ -->
+<!-- $Revision$ -->
 <refentry xml:id="function.mb-ereg-replace-callback" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <refnamediv>
   <refname>mb_ereg_replace_callback</refname>