diff --git a/lib/rssaction.php b/lib/rssaction.php
index 0a3377d511..912c144801 100644
--- a/lib/rssaction.php
+++ b/lib/rssaction.php
@@ -68,6 +68,7 @@ class Rss10Action extends Action {
 	}
 
 	function show_channel($notices) {
+		global $config;
 
 		$channel = $this->get_channel();
 		$image = $this->get_image();