diff --git a/src/handlers/foreignone/FilesHandler.php b/src/handlers/foreignone/FilesHandler.php
index 02f1fa7..d4c458c 100644
--- a/src/handlers/foreignone/FilesHandler.php
+++ b/src/handlers/foreignone/FilesHandler.php
@@ -44,7 +44,7 @@ class FilesHandler
             $parents = array_reverse($parents);
 
         $folder = $parents[count($parents)-1];
-        $files = Book::getList($folder->section, $folder_id);
+        $files = Book::getList($folder->category, $folder_id);
 
         $bc = [
             ['text' => lang('files'), 'url' => '/files/'],
diff --git a/src/lib/foreignone/files/Book.php b/src/lib/foreignone/files/Book.php
index d3532f7..ed6d8da 100644
--- a/src/lib/foreignone/files/Book.php
+++ b/src/lib/foreignone/files/Book.php
@@ -21,6 +21,7 @@ class Book
     public string $fileType;
     public string $path;
     public bool $external;
+    public SectionType $category; // TODO: rename column to `section`
 
     public function getId(): string {
         return $this->id;