diff --git a/configs/stm32mp15_dhcom_basic_defconfig b/configs/stm32mp15_dhcom_basic_defconfig
index 0ff015cae4..7f7aecf251 100644
--- a/configs/stm32mp15_dhcom_basic_defconfig
+++ b/configs/stm32mp15_dhcom_basic_defconfig
@@ -80,6 +80,7 @@ CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SPL_ENV_IS_NOWHERE=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_IP_DEFRAG=y
+CONFIG_TFTP_TSIZE=y
 CONFIG_STM32_ADC=y
 CONFIG_SPL_BLOCK_CACHE=y
 CONFIG_DFU_MMC=y
diff --git a/configs/stm32mp15_dhcor_basic_defconfig b/configs/stm32mp15_dhcor_basic_defconfig
index 83614b9fc8..35e43a9a2f 100644
--- a/configs/stm32mp15_dhcor_basic_defconfig
+++ b/configs/stm32mp15_dhcor_basic_defconfig
@@ -77,6 +77,7 @@ CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SPL_ENV_IS_NOWHERE=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_IP_DEFRAG=y
+CONFIG_TFTP_TSIZE=y
 CONFIG_STM32_ADC=y
 CONFIG_SPL_BLOCK_CACHE=y
 CONFIG_DFU_MMC=y