diff --git a/usr.bin/mkimg/ebr.c b/usr.bin/mkimg/ebr.c
index 28931ea4de8c..526c494084cf 100644
--- a/usr.bin/mkimg/ebr.c
+++ b/usr.bin/mkimg/ebr.c
@@ -39,11 +39,15 @@ __FBSDID("$FreeBSD$");
 #include "mkimg.h"
 #include "scheme.h"
 
+#ifndef DOSPTYP_FAT16B
+#define	DOSPTYP_FAT16B	0x06
+#endif
 #ifndef DOSPTYP_FAT32
 #define	DOSPTYP_FAT32	0x0b
 #endif
 
 static struct mkimg_alias ebr_aliases[] = {
+    {	ALIAS_FAT16B, ALIAS_INT2TYPE(DOSPTYP_FAT16B) },
     {	ALIAS_FAT32, ALIAS_INT2TYPE(DOSPTYP_FAT32) },
     {	ALIAS_FREEBSD, ALIAS_INT2TYPE(DOSPTYP_386BSD) },
     {	ALIAS_NONE, 0 }
diff --git a/usr.bin/mkimg/mbr.c b/usr.bin/mkimg/mbr.c
index 961ca45b45eb..20d4d91e2238 100644
--- a/usr.bin/mkimg/mbr.c
+++ b/usr.bin/mkimg/mbr.c
@@ -39,6 +39,9 @@ __FBSDID("$FreeBSD$");
 #include "mkimg.h"
 #include "scheme.h"
 
+#ifndef DOSPTYP_FAT16B
+#define	DOSPTYP_FAT16B	0x06
+#endif
 #ifndef DOSPTYP_FAT32
 #define	DOSPTYP_FAT32	0x0b
 #endif
@@ -49,6 +52,7 @@ __FBSDID("$FreeBSD$");
 static struct mkimg_alias mbr_aliases[] = {
     {	ALIAS_EBR, ALIAS_INT2TYPE(DOSPTYP_EXT) },
     {	ALIAS_EFI, ALIAS_INT2TYPE(DOSPTYP_EFI) },
+    {	ALIAS_FAT16B, ALIAS_INT2TYPE(DOSPTYP_FAT16B) },
     {	ALIAS_FAT32, ALIAS_INT2TYPE(DOSPTYP_FAT32) },
     {	ALIAS_FREEBSD, ALIAS_INT2TYPE(DOSPTYP_386BSD) },
     {	ALIAS_NTFS, ALIAS_INT2TYPE(DOSPTYP_NTFS) },
diff --git a/usr.bin/mkimg/scheme.c b/usr.bin/mkimg/scheme.c
index 9bdf8a5a5463..1e648557e75d 100644
--- a/usr.bin/mkimg/scheme.c
+++ b/usr.bin/mkimg/scheme.c
@@ -50,6 +50,7 @@ static struct {
 } scheme_alias[] = {
 	{ "ebr", ALIAS_EBR },
 	{ "efi", ALIAS_EFI },
+	{ "fat16b", ALIAS_FAT16B },
 	{ "fat32", ALIAS_FAT32 },
 	{ "freebsd", ALIAS_FREEBSD },
 	{ "freebsd-boot", ALIAS_FREEBSD_BOOT },
diff --git a/usr.bin/mkimg/scheme.h b/usr.bin/mkimg/scheme.h
index 73b06eb7a4fb..3ba4243bba90 100644
--- a/usr.bin/mkimg/scheme.h
+++ b/usr.bin/mkimg/scheme.h
@@ -36,6 +36,7 @@ enum alias {
 	/* start */
 	ALIAS_EBR,
 	ALIAS_EFI,
+	ALIAS_FAT16B,
 	ALIAS_FAT32,
 	ALIAS_FREEBSD,
 	ALIAS_FREEBSD_BOOT,