diff --git a/wcfsetup/install/files/lib/system/form/builder/field/FileProcessorFormField.class.php b/wcfsetup/install/files/lib/system/form/builder/field/FileProcessorFormField.class.php
index 0e2808100b..2588f18967 100644
--- a/wcfsetup/install/files/lib/system/form/builder/field/FileProcessorFormField.class.php
+++ b/wcfsetup/install/files/lib/system/form/builder/field/FileProcessorFormField.class.php
@@ -5,6 +5,7 @@
 use wcf\data\file\File;
 use wcf\data\file\FileList;
 use wcf\data\file\thumbnail\FileThumbnailList;
+use wcf\data\IStorableObject;
 use wcf\system\file\processor\FileProcessor;
 use wcf\system\file\processor\IFileProcessor;
 use wcf\system\form\builder\data\processor\CustomFormDataProcessor;
@@ -104,6 +105,16 @@ function (IFormDocument $document, array $parameters) {
         return $this;
     }
 
+    #[\Override]
+    public function updatedObject(array $data, IStorableObject $object, $loadValues = true)
+    {
+        if ($loadValues) {
+            $this->context['objectID'] = $object->{$object::getDatabaseTableIndexName()};
+        }
+
+        return parent::updatedObject($data, $object, $loadValues);
+    }
+
     public function getFileProcessor(): IFileProcessor
     {
         return $this->getObjectType()->getProcessor();