diff --git a/libraries/AP_HAL_ChibiOS/hwdef/Durandal/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/Durandal/hwdef.dat
index 843e6b6a76..ae9d50dfd7 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/Durandal/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/Durandal/hwdef.dat
@@ -158,9 +158,7 @@ PD1 UART4_TX UART4 NODMA
 
 # USART6 is telem3
 PG9 USART6_RX USART6 NODMA
-# we leave PG14 as an input to prevent it acting as a pullup
-# on the IOMCU SBUS input
-# PG14 USART6_TX USART6
+PG14 USART6_TX USART6
 PG15 USART6_CTS USART6
 PG8 USART6_RTS USART6