diff --git a/libraries/AP_HAL_ChibiOS/hwdef/AIRLink/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/AIRLink/hwdef.dat
index faabdfb5e8..7de3644c2e 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/AIRLink/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/AIRLink/hwdef.dat
@@ -21,7 +21,7 @@ FLASH_SIZE_KB 2048
 env OPTIMIZE -O2
 
 # order of UARTs (and USB)
-SERIAL_ORDER OTG1 UART7 UART5 USART1 UART8 USART3 OTG2
+SERIAL_ORDER OTG1 UART7 UART5 USART1 UART8 USART3 USART2 OTG2
 
 # default the 2nd interface to MAVLink2
 define HAL_OTG1_PROTOCOL SerialProtocol_MAVLink2