diff --git a/configs/gwventana_emmc_defconfig b/configs/gwventana_emmc_defconfig
index 3318fae..944c012 100644
--- a/configs/gwventana_emmc_defconfig
+++ b/configs/gwventana_emmc_defconfig
@@ -33,6 +33,7 @@
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_SPL_NAND_OFS=0x1100000
+CONFIG_CMD_SPL_WRITE_SIZE=0x20000
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_MMC=y
 CONFIG_CMD_I2C=y