diff --git a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4/hwdef.dat
index 910bcac2fe..a26f85d30d 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4/hwdef.dat
@@ -3,6 +3,14 @@
 
 include ../fmuv5/hwdef.dat
 
+# red and blue LEDs swapped vs fmuv5
+# red LED marked as B/E
+undef PB1
+PB1 LED_RED OUTPUT OPENDRAIN GPIO(92)
+# blue LED marked as ACT
+undef PC7
+PC7 LED_BLUE OUTPUT GPIO(90) HIGH
+
 # setup for supplied power brick
 undef HAL_BATT_VOLT_SCALE
 define HAL_BATT_VOLT_SCALE 18.182