diff --git a/lib/plugins/admin.php b/lib/plugins/admin.php
index 59c6377e74e788e4ca32d5a897be6021aea49442..d9c7d296998b4f6bbdc5041aa7cc45cec636d58b 100644
--- a/lib/plugins/admin.php
+++ b/lib/plugins/admin.php
@@ -80,6 +80,7 @@ class DokuWiki_Admin_Plugin extends DokuWiki_Plugin {
     public function isAccessibleByCurrentUser() {
         global $INFO;
 
+        $data = [];
         $data['instance'] = $this;
         $data['hasAccess'] = false;