diff --git a/configs/koelsch_defconfig b/configs/koelsch_defconfig
index 3484a17..23d11df 100644
--- a/configs/koelsch_defconfig
+++ b/configs/koelsch_defconfig
@@ -67,6 +67,7 @@
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_MTD=y
 CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ8XXX=y
 CONFIG_DM_ETH=y
 CONFIG_SH_ETHER=y
 CONFIG_PCI=y