diff --git a/config/sources/families/k3.conf b/config/sources/families/k3.conf
index c4576c9785fe..33ce59755ea7 100644
--- a/config/sources/families/k3.conf
+++ b/config/sources/families/k3.conf
@@ -83,7 +83,7 @@ function post_create_partitions() {
 
 function format_partitions() {
 	# ROM is very particular about partition IDs
-	run_host_command_logged parted ${LOOP} set 1 lba on
+	run_host_command_logged sfdisk --part-type ${LOOP} 1 e
 }
 
 function write_uboot_platform() {