diff --git a/src/remote/activitypub/kernel/undo/follow.ts b/src/remote/activitypub/kernel/undo/follow.ts
index 737798461..f112ee8bf 100644
--- a/src/remote/activitypub/kernel/undo/follow.ts
+++ b/src/remote/activitypub/kernel/undo/follow.ts
@@ -31,7 +31,7 @@ export default async (actor: IRemoteUser, activity: IFollow): Promise<void> => {
 	});
 
 	if (req) {
-		await cancelRequest(actor, followee);
+		await cancelRequest(followee, actor);
 	} else {
 		await unfollow(actor, followee);
 	}