diff --git a/src/event/TimerEvent.hxx b/src/event/TimerEvent.hxx
deleted file mode 100644
index 83a24a8d0..000000000
--- a/src/event/TimerEvent.hxx
+++ /dev/null
@@ -1,13 +0,0 @@
-// SPDX-License-Identifier: BSD-2-Clause
-// Copyright CM4all GmbH
-// author: Max Kellermann <mk@cm4all.com>
-
-#pragma once
-
-#include "FineTimerEvent.hxx"
-
-/**
- * This is a transitional alias.  Use #FineTimerEvent or
- * #CoarseTimerEvent instead.
- */
-using TimerEvent = FineTimerEvent;