diff --git a/sbin/nvmecontrol/devlist.c b/sbin/nvmecontrol/devlist.c
index e9df5faadb12..61e6dd47ef8e 100644
--- a/sbin/nvmecontrol/devlist.c
+++ b/sbin/nvmecontrol/devlist.c
@@ -1,159 +1,159 @@
 /*-
  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
  *
  * Copyright (C) 2012-2013 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
 
 #include <err.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <stdbool.h>
 #include <libutil.h>
 #include <paths.h>
 #include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sysexits.h>
 #include <unistd.h>
 
 #include "nvmecontrol.h"
 #include "comnd.h"
 
 /* Tables for command line parsing */
 
 #define NVME_MAX_UNIT 256
 
 static cmd_fn_t devlist;
 
 static struct options {
 	bool	human;
 } opt = {
 	.human = false,
 };
 
 static const struct opts devlist_opts[] = {
 #define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc }
 	OPT("human", 'h', arg_none, opt, human,
 	    "Show human readable disk size"),
 	{ NULL, 0, arg_none, NULL, NULL }
 };
 #undef OPT
 
 static struct cmd devlist_cmd = {
 	.name = "devlist",
 	.fn = devlist,
 	.descr = "List NVMe controllers and namespaces",
 	.ctx_size = sizeof(opt),
 	.opts = devlist_opts,
 	.args = NULL,
 };
 
 CMD_COMMAND(devlist_cmd);
 
 /* End of tables for command line parsing */
 
 static inline uint32_t
 ns_get_sector_size(struct nvme_namespace_data *nsdata)
 {
 	uint8_t flbas_fmt, lbads;
 
 	flbas_fmt = (nsdata->flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT) &
 		NVME_NS_DATA_FLBAS_FORMAT_MASK;
 	lbads = (nsdata->lbaf[flbas_fmt] >> NVME_NS_DATA_LBAF_LBADS_SHIFT) &
 		NVME_NS_DATA_LBAF_LBADS_MASK;
 
 	return (1 << lbads);
 }
 
 static void
 devlist(const struct cmd *f, int argc, char *argv[])
 {
 	struct nvme_controller_data	cdata;
 	struct nvme_namespace_data	nsdata;
 	char				name[64];
 	uint8_t				mn[64];
 	uint8_t				buf[7];
 	uint32_t			i;
 	uint64_t			size;
 	int				ctrlr, fd, found, ret;
 
 	if (arg_parse(argc, argv, f))
 		return;
 
 	ctrlr = -1;
 	found = 0;
 
 	while (ctrlr < NVME_MAX_UNIT) {
 		ctrlr++;
 		sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
 
 		ret = open_dev(name, &fd, 0, 0);
 
 		if (ret == EACCES) {
 			warnx("could not open "_PATH_DEV"%s\n", name);
 			continue;
 		} else if (ret != 0)
 			continue;
 
 		found++;
 		if (read_controller_data(fd, &cdata))
 			continue;
 		nvme_strvis(mn, cdata.mn, sizeof(mn), NVME_MODEL_NUMBER_LENGTH);
 		printf("%6s: %s\n", name, mn);
 
 		for (i = 0; i < cdata.nn; i++) {
 			if (read_namespace_data(fd, i + 1, &nsdata))
 				continue;
 			if (nsdata.nsze == 0)
 				continue;
 			sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
 			    NVME_NS_PREFIX, i + 1);
 			size = nsdata.nsze * (uint64_t)ns_get_sector_size(&nsdata);
 			if (opt.human) {
 				humanize_number(buf, sizeof(buf), size, "B",
 				    HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
 				printf("  %10s (%s)\n", name, buf);
 
 			} else {
-				printf("  %10s (%luMB)\n", name, size / 1024 / 1024);
+				printf("  %10s (%juMB)\n", name, (uintmax_t)size / 1024 / 1024);
 			}
 		}
 
 		close(fd);
 	}
 
 	if (found == 0) {
 		printf("No NVMe controllers found.\n");
 		exit(EX_UNAVAILABLE);
 	}
 
 	exit(0);
 }