1 files changed, 2 insertions, 1 deletions
diff --git a/src/remote/activitypub/kernel/undo/block.ts b/src/remote/activitypub/kernel/undo/block.ts
index c916a00737..9c277ed7d2 100644
--- a/src/remote/activitypub/kernel/undo/block.ts
+++ b/src/remote/activitypub/kernel/undo/block.ts
@@ -9,13 +9,14 @@ const logger = apLogger;
 
 export default async (actor: IRemoteUser, activity: IBlock): Promise<void> => {
 	const id = typeof activity.object == 'string' ? activity.object : activity.object.id;
+	if (id == null) throw 'missing id';
 
 	const uri = activity.id || activity;
 
 	logger.info(`UnBlock: ${uri}`);
 
 	if (!id.startsWith(config.url + '/')) {
-		return null;
+		return;
 	}
 
 	const blockee = await Users.findOne(id.split('/').pop());