diff --git a/configs/ds109_defconfig b/configs/ds109_defconfig
index c9207433b374d2fec33c43e3f5d2e020c2afeb20..fd10e6e3c36e1f08d28d05969baa9010714b9202 100644
--- a/configs/ds109_defconfig
+++ b/configs/ds109_defconfig
@@ -18,6 +18,8 @@ CONFIG_ISO_PARTITION=y
 CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_MVSATA_IDE=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_MVTWSI=y
 # CONFIG_MMC is not set
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y