diff --git a/configs/helios4_defconfig b/configs/helios4_defconfig
index 574252e..3eeb4c4 100644
--- a/configs/helios4_defconfig
+++ b/configs/helios4_defconfig
@@ -48,6 +48,7 @@
 CONFIG_SPI_FLASH_MTD=y
 CONFIG_PHY_GIGE=y
 CONFIG_MVNETA=y
+CONFIG_MII=y
 CONFIG_PCI=y
 CONFIG_SCSI=y
 CONFIG_DEBUG_UART_SHIFT=2