diff --git a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4Pro/hwdef-bl.dat b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4Pro/hwdef-bl.dat
index 0d0a0dd08c..8452bff5b8 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4Pro/hwdef-bl.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4Pro/hwdef-bl.dat
@@ -1,5 +1,5 @@
 # hw definition file for processing by chibios_hwdef.py
-# for F743 bootloader
+# for H743 bootloader
 
 # MCU class and specific type
 MCU STM32H7xx STM32H743xx
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4Pro/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4Pro/hwdef.dat
index ee93ebddae..f54ba8980e 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4Pro/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4Pro/hwdef.dat
@@ -1,5 +1,4 @@
 # hw definition file for processing by chibios_hwdef.py
-# for F743 bootloader
 
 # MCU class and specific type
 MCU STM32H7xx STM32H743xx