diff --git a/configs/sama5d36ek_cmp_mmc_defconfig b/configs/sama5d36ek_cmp_mmc_defconfig
index 1967352..3732b68 100644
--- a/configs/sama5d36ek_cmp_mmc_defconfig
+++ b/configs/sama5d36ek_cmp_mmc_defconfig
@@ -33,6 +33,7 @@
 CONFIG_CMD_NAND=y
 CONFIG_CMD_NAND_TRIMFFS=y
 CONFIG_CMD_DHCP=y
+CONFIG_BOOTP_BOOTFILESIZE=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_FAT=y