diff --git a/libraries/AP_HAL_ChibiOS/hwdef/omnibusf4pro/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/omnibusf4pro/hwdef.dat
index 81121a086c..b4b7aac140 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/omnibusf4pro/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/omnibusf4pro/hwdef.dat
@@ -85,7 +85,8 @@ PB8 TIM4_CH3 TIM4 RCININT PULLDOWN LOW
 
 #Omnibus F4 V3 and later had hw inverter on UART6
 #Overide it to use as GPS UART port
-PC8 SBUS_INVERT OUTPUT LOW
+PC8 SBUS_INVERT_RX OUTPUT LOW
+PC9 SBUS_INVERT_TX OUTPUT LOW
 
 # SPI Device table 
 SPIDEV mpu6000    SPI1 DEVID1 MPU6000_CS MODE3 1*MHZ 8*MHZ