diff --git a/tf_config/stm32mp1-mp13-tbb-ecdsa-twisted b/tf_config/stm32mp1-mp13-tbb-ecdsa-twisted
index 991a167..775be1f 100644
--- a/tf_config/stm32mp1-mp13-tbb-ecdsa-twisted
+++ b/tf_config/stm32mp1-mp13-tbb-ecdsa-twisted
@@ -2,10 +2,11 @@
 ARCH=aarch32
 ARM_ARCH_MAJOR=7
 CROSS_COMPILE=arm-none-eabi-
+DTB_FILE_NAME=stm32mp135f-dk.dtb
+KEY_ALG=ecdsa-brainpool-twisted
 PLAT=stm32mp1
+PSA_FWU_SUPPORT=1
 STM32MP13=1
 STM32MP_EMMC=1
 STM32MP_SDMMC=1
-DTB_FILE_NAME=stm32mp135f-dk.dtb
 TRUSTED_BOARD_BOOT=1
-KEY_ALG=ecdsa-brainpool-twisted