diff --git a/feed.php b/feed.php
index 178f51d56cb3a1d2947d171b8cf2aebfc5b06b2f..7150a8e1e7520c70d50761b0c68b825fed6801ec 100644
--- a/feed.php
+++ b/feed.php
@@ -35,6 +35,7 @@
   header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
   header('Pragma: public');
   header('Content-Type: application/xml; charset=utf-8');
+  header('X-Robots-Tag: noindex');
   if($cmod && (($cmod+$conf['rss_update']>time()) || ($cmod>@filemtime($conf['changelog'])))){
     http_conditionalRequest($cmod);
     if($conf['allowdebug']) header("X-CacheUsed: $cache");