diff --git a/target/linux/ar71xx/mikrotik/config-default b/target/linux/ar71xx/mikrotik/config-default
index fb905496bc..ea99465678 100644
--- a/target/linux/ar71xx/mikrotik/config-default
+++ b/target/linux/ar71xx/mikrotik/config-default
@@ -1,3 +1,4 @@
+CONFIG_AT803X_PHY=y
 # CONFIG_ATH79_DEV_DSA is not set
 # CONFIG_ATH79_MACH_ALFA_AP96 is not set
 # CONFIG_ATH79_MACH_ALFA_NX is not set