diff --git a/configs/M5475GFE_defconfig b/configs/M5475GFE_defconfig
index ee7793c..39d3409 100644
--- a/configs/M5475GFE_defconfig
+++ b/configs/M5475GFE_defconfig
@@ -15,6 +15,7 @@
 CONFIG_CMD_PING=y
 CONFIG_CMD_CACHE=y
 CONFIG_MTD_NOR_FLASH=y
+CONFIG_MII=y
 CONFIG_PCI=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y