diff --git a/plugins/rest/lib/rest/route.php b/plugins/rest/lib/rest/route.php
index 742f93d0..62564558 100644
--- a/plugins/rest/lib/rest/route.php
+++ b/plugins/rest/lib/rest/route.php
@@ -227,7 +227,7 @@ public function handleRequest(array $paths, array $get)
                             array_merge($paths, [$instance->getId()]),
                         );
                         if (is_callable($this->getItemFunc)) {
-                            $instance_data = call_user_func($this->getItemFunc, $this, $instance_data);
+                            $instance_data = call_user_func($this->getItemFunc, $this, $instance_data, $instance);
                         }
 
                         $data[] = $instance_data;