diff --git a/configs/at91sam9260ek_dataflash_cs1_defconfig b/configs/at91sam9260ek_dataflash_cs1_defconfig
index 7b9e0a4..1ddee34 100644
--- a/configs/at91sam9260ek_dataflash_cs1_defconfig
+++ b/configs/at91sam9260ek_dataflash_cs1_defconfig
@@ -33,6 +33,7 @@
 # CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
+CONFIG_BOOTP_BOOTFILESIZE=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_FAT=y
 CONFIG_OF_CONTROL=y