diff --git a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6qpsbc/install_linux_fw_uuu.sh b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6qpsbc/install_linux_fw_uuu.sh
index ff7a40188..17949a556 100644
--- a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6qpsbc/install_linux_fw_uuu.sh
+++ b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6qpsbc/install_linux_fw_uuu.sh
@@ -64,10 +64,10 @@ part_update()
 	if [ "${TRUSTFENCE}" = "true" ] && [ "${1}" = "bootloader" ]; then
 		uuu fb: download -f "${2}"
 		if [ -n "${DEK_BLOB_FILE}" ]; then
-			uuu fb: ucmd setenv uboot_size $filesize
-			uuu fb: ucmd setenv fastboot_buffer $initrd_addr
+			uuu fb: ucmd setenv uboot_size \${filesize}
+			uuu fb: ucmd setenv fastboot_buffer \${initrd_addr}
 			uuu fb: download -f "${3}"
-			uuu fb: ucmd setenv dek_size $filesize
+			uuu fb: ucmd setenv dek_size \${filesize}
 			uuu fb: ucmd trustfence update ram \${loadaddr} \${uboot_size} \${initrd_addr} \${dek_size}
 		else
 			uuu fb: ucmd trustfence update ram \${fastboot_buffer} \${fastboot_bytes}
diff --git a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6sbc/install_linux_fw_uuu.sh b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6sbc/install_linux_fw_uuu.sh
index 113dbc4c5..4d3f636c7 100644
--- a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6sbc/install_linux_fw_uuu.sh
+++ b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6sbc/install_linux_fw_uuu.sh
@@ -64,10 +64,10 @@ part_update()
 	if [ "${TRUSTFENCE}" = "true" ] && [ "${1}" = "bootloader" ]; then
 		uuu fb: download -f "${2}"
 		if [ -n "${DEK_BLOB_FILE}" ]; then
-			uuu fb: ucmd setenv uboot_size $filesize
-			uuu fb: ucmd setenv fastboot_buffer $initrd_addr
+			uuu fb: ucmd setenv uboot_size \${filesize}
+			uuu fb: ucmd setenv fastboot_buffer \${initrd_addr}
 			uuu fb: download -f "${3}"
-			uuu fb: ucmd setenv dek_size $filesize
+			uuu fb: ucmd setenv dek_size \${filesize}
 			uuu fb: ucmd trustfence update ram \${loadaddr} \${uboot_size} \${initrd_addr} \${dek_size}
 		else
 			uuu fb: ucmd trustfence update ram \${fastboot_buffer} \${fastboot_bytes}
diff --git a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6ul/install_linux_fw_uuu.sh b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6ul/install_linux_fw_uuu.sh
index 446ccc150..01afb32fc 100644
--- a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6ul/install_linux_fw_uuu.sh
+++ b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx6ul/install_linux_fw_uuu.sh
@@ -76,10 +76,10 @@ part_update()
 	uuu fb: download -f "${2}"
 	if [ "${TRUSTFENCE}" = "true" ] && [ "${1}" = "uboot" ]; then
 		if [ -n "${DEK_BLOB_FILE}" ]; then
-			uuu fb: ucmd setenv uboot_size $filesize
-			uuu fb: ucmd setenv fastboot_buffer $initrd_addr
+			uuu fb: ucmd setenv uboot_size \${filesize}
+			uuu fb: ucmd setenv fastboot_buffer \${initrd_addr}
 			uuu fb: download -f "${4}"
-			uuu fb: ucmd setenv dek_size $filesize
+			uuu fb: ucmd setenv dek_size \${filesize}
 			uuu "fb[-t ${3}]:" ucmd trustfence update ram \${loadaddr} \${uboot_size} \${initrd_addr} \${dek_size}
 		else
 			uuu "fb[-t ${3}]:" ucmd trustfence update ram \${fastboot_buffer} \${fastboot_bytes}
diff --git a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx8m/install_linux_fw_uuu.sh b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx8m/install_linux_fw_uuu.sh
index a6151082b..00b1e6a34 100644
--- a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx8m/install_linux_fw_uuu.sh
+++ b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx8m/install_linux_fw_uuu.sh
@@ -64,10 +64,10 @@ part_update()
 	if [ "${TRUSTFENCE}" = "true" ] && [ "${1}" = "bootloader" ]; then
 		uuu fb: download -f "${2}"
 		if [ -n "${DEK_BLOB_KEY}" ]; then
-			uuu fb: ucmd setenv uboot_size $filesize
-			uuu fb: ucmd setenv fastboot_buffer $initrd_addr
+			uuu fb: ucmd setenv uboot_size \${filesize}
+			uuu fb: ucmd setenv fastboot_buffer \${initrd_addr}
 			uuu fb: download -f "${3}"
-			uuu fb: ucmd setenv dek_size $filesize
+			uuu fb: ucmd setenv dek_size \${filesize}
 			uuu fb: ucmd trustfence update ram \${loadaddr} \${uboot_size} \${initrd_addr} \${dek_size}
 		else
 			uuu fb: ucmd trustfence update ram \${fastboot_buffer} \${fastboot_bytes}
diff --git a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx8x/install_linux_fw_uuu.sh b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx8x/install_linux_fw_uuu.sh
index 9fb6fb0f5..bf8b59c92 100644
--- a/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx8x/install_linux_fw_uuu.sh
+++ b/meta-digi-arm/recipes-bsp/u-boot/u-boot-dey/ccimx8x/install_linux_fw_uuu.sh
@@ -64,10 +64,10 @@ part_update()
 	if [ "${TRUSTFENCE}" = "true" ] && [ "${1}" = "bootloader" ]; then
 		uuu fb: download -f "${2}"
 		if [ -n "${DEK_BLOB_KEY}" ]; then
-			uuu fb: ucmd setenv uboot_size $filesize
-			uuu fb: ucmd setenv fastboot_buffer $initrd_addr
+			uuu fb: ucmd setenv uboot_size \${filesize}
+			uuu fb: ucmd setenv fastboot_buffer \${initrd_addr}
 			uuu fb: download -f "${3}"
-			uuu fb: ucmd setenv dek_size $filesize
+			uuu fb: ucmd setenv dek_size \${filesize}
 			uuu fb: ucmd trustfence update ram \${loadaddr} \${uboot_size} \${initrd_addr} \${dek_size}
 		else
 			uuu fb: ucmd trustfence update ram \${fastboot_buffer} \${fastboot_bytes}