diff --git a/configs/warp7_bl33_defconfig b/configs/warp7_bl33_defconfig
index c5c5d99..5452a49 100644
--- a/configs/warp7_bl33_defconfig
+++ b/configs/warp7_bl33_defconfig
@@ -35,6 +35,7 @@
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_BOUNCE_BUFFER=y
 CONFIG_DFU_MMC=y
+CONFIG_SYS_DFU_DATA_BUF_SIZE=0x1000000
 CONFIG_DM_I2C=y
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_FSL_USDHC=y