diff --git a/system/includes/functions.php b/system/includes/functions.php
index 0f265c1..4099b1d 100644
--- a/system/includes/functions.php
+++ b/system/includes/functions.php
@@ -1493,7 +1493,7 @@ function generate_opml()
         )
     );
 
-    $opml = new OPML($opml_data);
+    $opml = new opml($opml_data);
     echo $opml->render();
 }