diff --git a/lib/Service/FormsService.php b/lib/Service/FormsService.php
index 1665cd645..65c69fe29 100644
--- a/lib/Service/FormsService.php
+++ b/lib/Service/FormsService.php
@@ -21,6 +21,7 @@
 use OCA\Forms\Events\FormSubmittedEvent;
 use OCP\AppFramework\Db\DoesNotExistException;
 use OCP\AppFramework\Db\IMapperException;
+use OCP\AppFramework\Db\MultipleObjectsReturnedException;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Files\IRootFolder;
 use OCP\Files\NotFoundException;