diff --git a/configs/A20-Olimex-SOM-EVB_defconfig b/configs/A20-Olimex-SOM-EVB_defconfig
index 92979a0..82fa109 100644
--- a/configs/A20-Olimex-SOM-EVB_defconfig
+++ b/configs/A20-Olimex-SOM-EVB_defconfig
@@ -21,6 +21,7 @@
 CONFIG_SCSI_AHCI=y
 CONFIG_ETH_DESIGNWARE=y
 CONFIG_RGMII=y
+CONFIG_MII=y
 CONFIG_SUN7I_GMAC=y
 CONFIG_AXP_ALDO3_VOLT=2800
 CONFIG_AXP_ALDO4_VOLT=2800