diff --git a/include/ac/queue.h b/include/ac/queue.h
deleted file mode 100644
index 1cd19e031d..0000000000
--- a/include/ac/queue.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* Generic queue.h */
-/* $OpenLDAP$ */
-/*
- * Copyright 1998-2001 The OpenLDAP Foundation, Redwood City, California, USA
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted only as authorized by the OpenLDAP
- * Public License.  A copy of this license is available at
- * http://www.OpenLDAP.org/license.html or in file LICENSE in the
- * top-level directory of the distribution.
- */
-
-#ifndef _AC_CRYPT_H
-#define _AC_CRYPT_H
-
-#if HAVE_SYS_QUEUE_H
-#	include <sys/queue.h>
-#else
-#	include <queue-compat.h>
-#endif
-
-#endif /* _AC_CRYPT_H */