diff --git a/themes/danbooru/themelet.class.php b/themes/danbooru/themelet.class.php
index f01e4c5f..067a99e9 100644
--- a/themes/danbooru/themelet.class.php
+++ b/themes/danbooru/themelet.class.php
@@ -4,8 +4,8 @@ class Themelet {
 	public function display_error($page, $title, $message) {
 		$page->set_title($title);
 		$page->set_heading($title);
-		$page->add_side_block(new NavBlock());
-		$page->add_main_block(new Block("Error", $message));
+		$page->add_block(new NavBlock());
+		$page->add_block(new Block("Error", $message));
 	}
 }
 ?>