diff --git a/target/linux/lantiq/config-3.3 b/target/linux/lantiq/config-3.3
index ce0b9ba905..372c9cb9b0 100644
--- a/target/linux/lantiq/config-3.3
+++ b/target/linux/lantiq/config-3.3
@@ -92,6 +92,7 @@ CONFIG_PERF_USE_VMALLOC=y
 CONFIG_PHYLIB=y
 # CONFIG_PREEMPT_RCU is not set
 CONFIG_RTL8366RB_PHY=y
+# CONFIG_RTL8366S_PHY_DEBUG_FS is not set
 CONFIG_RTL8366_SMI=y
 # CONFIG_SCSI_DMA is not set
 # CONFIG_SERIAL_8250 is not set