diff --git a/libraries/AP_HAL_ChibiOS/hwdef/ZubaxGNSS/hwdef-bl.dat b/libraries/AP_HAL_ChibiOS/hwdef/ZubaxGNSS/hwdef-bl.dat
index ef13fef4d6..8850dd11f0 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/ZubaxGNSS/hwdef-bl.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/ZubaxGNSS/hwdef-bl.dat
@@ -17,6 +17,7 @@ env AP_PERIPH 1
 define HAL_BOARD_AP_PERIPH_ZUBAXGNSS
 
 define CAN_APP_NODE_NAME "org.ardupilot.ap_periph_ZubaxGNSS"
+define HAL_CAN_DEFAULT_NODE_ID 114
 
 # crystal frequency
 OSCILLATOR_HZ 16000000
@@ -26,8 +27,8 @@ define CH_CFG_ST_FREQUENCY 1000
 FLASH_SIZE_KB 256
 
 # USART3 for debug
-STDOUT_SERIAL SD3
-STDOUT_BAUDRATE 115200
+#STDOUT_SERIAL SD3
+#STDOUT_BAUDRATE 115200
 
 # USART3 for debug
 PB10 USART3_TX USART3 SPEED_HIGH NODMA
@@ -110,7 +111,7 @@ define HAL_DEVICE_THREAD_STACK 768
 define AP_PARAM_MAX_EMBEDDED_PARAM 0
 
 # USART2 for GPS
-#PA2 USART2_TX USART2 SPEED_HIGH NODMA
+PA2 USART2_TX USART2 SPEED_HIGH NODMA
 PA3 USART2_RX USART2 SPEED_HIGH NODMA
 
 UART_ORDER