diff --git a/sys/ddb/db_xxx.c b/sys/ddb/db_xxx.c
index f589be42444b..6ac89d0d5cc6 100644
--- a/sys/ddb/db_xxx.c
+++ b/sys/ddb/db_xxx.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: db_xxx.c,v 1.52 2008/10/03 14:52:11 rmind Exp $	*/
+/*	$NetBSD: db_xxx.c,v 1.53 2008/11/14 23:37:50 ad Exp $	*/
 
 /*
  * Copyright (c) 1982, 1986, 1989, 1991, 1993
@@ -37,9 +37,10 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: db_xxx.c,v 1.52 2008/10/03 14:52:11 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: db_xxx.c,v 1.53 2008/11/14 23:37:50 ad Exp $");
 
 #include "opt_kgdb.h"
+#include "opt_aio.h"
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -160,12 +161,14 @@ db_show_files_cmd(db_expr_t addr, bool haddr,
 	}
 }
 
+#ifdef AIO
 void
 db_show_aio_jobs(db_expr_t addr, bool haddr,
     db_expr_t count, const char *modif)
 {
 	aio_print_jobs(db_printf);
 }
+#endif
 
 void
 db_show_mqueue_cmd(db_expr_t addr, bool haddr,