diff --git a/api/src/activity/federation.js b/api/src/activity/federation.js
index 7301a5e..6615872 100644
--- a/api/src/activity/federation.js
+++ b/api/src/activity/federation.js
@@ -53,6 +53,9 @@ module.exports = {
 				const note = await db.getAPObject(msg.object.id, 'Note')
 				if (note !== null)
 					await db.table.objects().deleteOne({ _id: note._id })
+
+				if (typeof msg.object.id === 'string')
+					await db.table.quizs().deleteOne({ replyTo: msg.object.id })
 				return true
 			}
 		}