diff --git a/configs/firefly-rk3399_defconfig b/configs/firefly-rk3399_defconfig
index 58eaab3..4359a36 100644
--- a/configs/firefly-rk3399_defconfig
+++ b/configs/firefly-rk3399_defconfig
@@ -64,5 +64,6 @@
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
 CONFIG_USB_STORAGE=y
+CONFIG_USB_HOST_ETHER=y
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_ERRNO_STR=y