diff --git a/boards/holybro/kakuteh7-wing/default.px4board b/boards/holybro/kakuteh7-wing/default.px4board
index 97e9d53b52..c75467a4d2 100644
--- a/boards/holybro/kakuteh7-wing/default.px4board
+++ b/boards/holybro/kakuteh7-wing/default.px4board
@@ -5,6 +5,7 @@ CONFIG_BOARD_SERIAL_GPS2="/dev/ttyS1"
 CONFIG_BOARD_SERIAL_TEL1="/dev/ttyS2"
 CONFIG_BOARD_SERIAL_TEL2="/dev/ttyS3"
 CONFIG_BOARD_SERIAL_TEL3="/dev/ttyS5"
+CONFIG_BOARD_SERIAL_RC="/dev/ttyS4"
 CONFIG_DRIVERS_ADC_BOARD_ADC=y
 CONFIG_DRIVERS_BAROMETER_BMP280=y
 CONFIG_DRIVERS_BAROMETER_GOERTEK_SPA06=y