diff --git a/blocks/rss_client/block_rss_client_error.php b/blocks/rss_client/block_rss_client_error.php
index abd519b3ba2..81be20ba958 100644
--- a/blocks/rss_client/block_rss_client_error.php
+++ b/blocks/rss_client/block_rss_client_error.php
@@ -2,7 +2,7 @@
 
     require_once('../../config.php');
 
-    require_variable($error);
+    $error = required_param('error',PARAM_CLEAN);
 
     print_header(get_string('error'), 
                  get_string('error'),