diff --git a/meta-ti-bsp/classes/kernel-uboot-legacyhs.bbclass b/meta-ti-bsp/classes/kernel-uboot-legacyhs.bbclass
index 6d4aff6b..a2940845 100644
--- a/meta-ti-bsp/classes/kernel-uboot-legacyhs.bbclass
+++ b/meta-ti-bsp/classes/kernel-uboot-legacyhs.bbclass
@@ -4,6 +4,9 @@
 # SPDX-License-Identifier: MIT
 #
 
+ARCH = "${@oe.kernel.map_kernel_arch(d)}"
+UBOOT_ARCH = "${@oe.kernel.map_uboot_arch(d)}"
+
 # fitImage kernel compression algorithm
 FIT_KERNEL_COMP_ALG ?= "gzip"
 FIT_KERNEL_COMP_ALG_EXTENSION ?= ".gz"