diff --git a/commands/Kconfig b/commands/Kconfig
index 951a869..675bd1c 100644
--- a/commands/Kconfig
+++ b/commands/Kconfig
@@ -1127,7 +1127,7 @@
 	help
 	  DHCP client to obtain IP or boot params
 
-	  Usage: dhcp [-HvcuUr]
+	  Usage: dhcp [-HvcuUro]
 
 	  Options:
 	          -H HOSTNAME     hostname to send to the DHCP server
@@ -1135,7 +1135,8 @@
 	          -c ID           DHCP Client ID (code 61) submitted in DHCP requests
 	          -u UUID         DHCP Client UUID (code 97) submitted in DHCP requests
 	          -U CLASS        DHCP User class (code 77) submitted in DHCP requests
-	          -r RETRY        retry limit (default 20)#
+	          -r RETRY        retry limit (default 20)
+		  -o PRIVATE DATA private data (code 224) submitted in DHCP requests
 
 config CMD_HOST
 	tristate
diff --git a/commands/dhcp.c b/commands/dhcp.c
index 1f07b2f..d9e844b 100644
--- a/commands/dhcp.c
+++ b/commands/dhcp.c
@@ -24,7 +24,7 @@
 	struct eth_device *edev;
 	const char *edevname;
 
-	while ((opt = getopt(argc, argv, "H:v:c:u:U:r:")) > 0) {
+	while ((opt = getopt(argc, argv, "H:v:c:u:U:r:o:")) > 0) {
 		switch (opt) {
 		case 'H':
 			dhcp_param.hostname = optarg;
@@ -44,6 +44,9 @@
 		case 'r':
 			dhcp_param.retries = simple_strtoul(optarg, NULL, 10);
 			break;
+		case 'o':
+			dhcp_param.option224 = optarg;
+			break;
 		default:
 			return COMMAND_ERROR_USAGE;
 		}
@@ -72,13 +75,14 @@
 BAREBOX_CMD_HELP_OPT("-c ID\t", "DHCP Client ID (code 61) submitted in DHCP requests")
 BAREBOX_CMD_HELP_OPT("-u UUID\t", "DHCP Client UUID (code 97) submitted in DHCP requests")
 BAREBOX_CMD_HELP_OPT("-U CLASS", "DHCP User class (code 77) submitted in DHCP requests")
-BAREBOX_CMD_HELP_OPT("-r RETRY", "retry limit (default 20)");
+BAREBOX_CMD_HELP_OPT("-r RETRY", "retry limit (default 20)")
+BAREBOX_CMD_HELP_OPT("-o PRIVATE DATA", "private data (code 224) submitted in DHCP requests");
 BAREBOX_CMD_HELP_END
 
 BAREBOX_CMD_START(dhcp)
 	.cmd		= do_dhcp,
 	BAREBOX_CMD_DESC("DHCP client to obtain IP or boot params")
-	BAREBOX_CMD_OPTS("[-HvcuUr] [device]")
+	BAREBOX_CMD_OPTS("[-HvcuUro] [device]")
 	BAREBOX_CMD_GROUP(CMD_GRP_NET)
 	BAREBOX_CMD_HELP(cmd_dhcp_help)
 	BAREBOX_CMD_COMPLETE(eth_complete)