diff --git a/functions.php b/functions.php
index d8d12f99..ceaefd21 100644
--- a/functions.php
+++ b/functions.php
@@ -13,6 +13,7 @@
 	require_once 'version.php';
 
 	if (RSS_BACKEND_TYPE == "magpie") {	
+		define('MAGPIE_USER_AGENT_EXT', ' (+Tiny Tiny RSS/' . VERSION . ')');
 		require_once "magpierss/rss_fetch.inc";
 		require_once 'magpierss/rss_utils.inc';
 	} else if (RSS_BACKEND_TYPE == "simplepie") {
diff --git a/magpierss/rss_fetch.inc b/magpierss/rss_fetch.inc
index f2fa2fa8..695d3b69 100644
--- a/magpierss/rss_fetch.inc
+++ b/magpierss/rss_fetch.inc
@@ -379,7 +379,11 @@ function init () {
         else {
             $ua = $ua . '; No cache)';
         }
-        
+
+        if ( defined('MAGPIE_USER_AGENT_EXT') ) {
+            $ua = $ua . MAGPIE_USER_AGENT_EXT;
+        }
+
         define('MAGPIE_USER_AGENT', $ua);
     }