diff --git a/meta-digi-arm/classes/image_types_digi.bbclass b/meta-digi-arm/classes/image_types_digi.bbclass
index f4601c467..54e773b23 100644
--- a/meta-digi-arm/classes/image_types_digi.bbclass
+++ b/meta-digi-arm/classes/image_types_digi.bbclass
@@ -21,7 +21,7 @@ IMAGE_CMD_boot.vfat() {
 	# 1KB blocks for mkfs.vfat
 	BOOTIMG_BLOCKS="$(expr ${BOOTIMG_FILES_SIZE} / 1024)"
 	if [ -n "${BOARD_BOOTIMAGE_PARTITION_SIZE}" ]; then
-		BOOTIMG_BLOCKS="$(expr ${BOARD_BOOTIMAGE_PARTITION_SIZE} / 1024)"
+		BOOTIMG_BLOCKS="${BOARD_BOOTIMAGE_PARTITION_SIZE}"
 	fi
 
 	# POKY: Ensure total sectors is a multiple of sectors per track or mcopy will
diff --git a/meta-digi-arm/conf/machine/ccimx6sbc.conf b/meta-digi-arm/conf/machine/ccimx6sbc.conf
index 330c8b4a7..dfbc75ef3 100644
--- a/meta-digi-arm/conf/machine/ccimx6sbc.conf
+++ b/meta-digi-arm/conf/machine/ccimx6sbc.conf
@@ -33,8 +33,8 @@ BT_TTY ?= "ttymxc1"
 # U-Boot script to be copied to the SD image
 BOOT_SCRIPTS = "boot-sd.scr:boot.scr"
 
-# Boot partition size for FAT image generation, 64MiB
-BOARD_BOOTIMAGE_PARTITION_SIZE ?= "67108864"
+# Boot partition size in KiB, (default 64MiB)
+BOARD_BOOTIMAGE_PARTITION_SIZE ?= "65536"
 
 # Flash image types
 SDCARD_ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4"