diff --git a/src/Bundle/ChillDocStoreBundle/Tests/Service/StoredObjectCleaner/RemoveOldVersionMessageHandlerTest.php b/src/Bundle/ChillDocStoreBundle/Tests/Service/StoredObjectCleaner/RemoveOldVersionMessageHandlerTest.php
index be268225d..c5c07aa02 100644
--- a/src/Bundle/ChillDocStoreBundle/Tests/Service/StoredObjectCleaner/RemoveOldVersionMessageHandlerTest.php
+++ b/src/Bundle/ChillDocStoreBundle/Tests/Service/StoredObjectCleaner/RemoveOldVersionMessageHandlerTest.php
@@ -120,4 +120,9 @@ class DummyStoredObjectManager implements StoredObjectManagerInterface
     {
         throw new \RuntimeException();
     }
+
+    public function exists(StoredObject|StoredObjectVersion $document): bool
+    {
+        throw new \RuntimeException();
+    }
 }