diff --git a/src/Bundle/ChillDocStoreBundle/Tests/Controller/WebdavControllerTest.php b/src/Bundle/ChillDocStoreBundle/Tests/Controller/WebdavControllerTest.php
index 435acc51f..9d469369d 100644
--- a/src/Bundle/ChillDocStoreBundle/Tests/Controller/WebdavControllerTest.php
+++ b/src/Bundle/ChillDocStoreBundle/Tests/Controller/WebdavControllerTest.php
@@ -446,4 +446,9 @@ class MockedStoredObjectManager implements StoredObjectManagerInterface
     public function clearCache(): void {}
 
     public function delete(StoredObjectVersion $storedObjectVersion): void {}
+
+    public function exists(StoredObject|StoredObjectVersion $document): bool
+    {
+        return true;
+    }
 }