diff --git a/libraries/AP_HAL_ChibiOS/hwdef/GEPRC_TAKER_H743/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/GEPRC_TAKER_H743/hwdef.dat
index 16129aed0a1e6..2ddc1245395eb 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/GEPRC_TAKER_H743/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/GEPRC_TAKER_H743/hwdef.dat
@@ -88,8 +88,6 @@ define DEFAULT_SERIAL1_PROTOCOL SerialProtocol_MSP_DisplayPort
 # RC input defaults to UART to allow for bi-dir dshot
 PA2 USART2_TX USART2
 PA3 USART2_RX USART2
-define DEFAULT_SERIAL2_PROTOCOL SerialProtocol_RCIN
-define DEFAULT_SERIAL2_BAUD 115
 
 # USART3 (BT)
 PB11 USART3_RX USART3 NODMA
@@ -99,7 +97,6 @@ define DEFAULT_SERIAL3_PROTOCOL SerialProtocol_None
 # UART4 (GPS)
 PA0 UART4_TX UART4
 PA1 UART4_RX UART4
-define DEFAULT_SERIAL4_PROTOCOL SerialProtocol_GPS
 
 # UART6
 PC6 USART6_TX USART6