diff --git a/configs/rpi_defconfig b/configs/rpi_defconfig
index 5bfb81e..1880f22 100644
--- a/configs/rpi_defconfig
+++ b/configs/rpi_defconfig
@@ -21,6 +21,7 @@
 CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_TFTP_TSIZE=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_BCM2835=y
 CONFIG_DM_ETH=y