diff --git a/feed.php b/feed.php
index 5bf1d2e85d8bfe5d7dda3e2ea88228f48c2f4fe3..b0187476b1a7e394d9dada63a48a22e0dfd661cf 100644
--- a/feed.php
+++ b/feed.php
@@ -474,7 +474,7 @@ function rssListNamespace($opt) {
     global $conf;
 
     $ns = ':'.cleanID($opt['namespace']);
-    $ns = str_replace(':', '/', $ns);
+    $ns = utf8_encodeFN(str_replace(':', '/', $ns));
 
     $data = array();
     $search_opts = array(