diff --git a/configs/s5p_goni_defconfig b/configs/s5p_goni_defconfig
index 28d8be6..72f9ce1 100644
--- a/configs/s5p_goni_defconfig
+++ b/configs/s5p_goni_defconfig
@@ -36,6 +36,7 @@
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
 # CONFIG_NET is not set
 CONFIG_DFU_MMC=y
+CONFIG_SYS_DFU_DATA_BUF_SIZE=0x2000000
 CONFIG_DM_I2C_GPIO=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_S5P=y