diff --git a/configs/km_kirkwood_128m16_defconfig b/configs/km_kirkwood_128m16_defconfig
index 1f97c9e..a4daa1a 100644
--- a/configs/km_kirkwood_128m16_defconfig
+++ b/configs/km_kirkwood_128m16_defconfig
@@ -46,6 +46,7 @@
 CONFIG_NETCONSOLE=y
 CONFIG_BOOTCOUNT_LIMIT=y
 CONFIG_BOOTCOUNT_RAM=y
+CONFIG_SYS_I2C_LEGACY=y
 CONFIG_SYS_I2C_SOFT=y
 CONFIG_SYS_I2C_SOFT_SLAVE=0x0
 CONFIG_SYS_I2C_MVTWSI=y