diff --git a/Tools/AP_Bootloader/board_types.txt b/Tools/AP_Bootloader/board_types.txt
index 5c0dc1884c..66ea782d44 100644
--- a/Tools/AP_Bootloader/board_types.txt
+++ b/Tools/AP_Bootloader/board_types.txt
@@ -273,6 +273,7 @@ AP_HW_MicoAir405Mini                 1161
 AP_HW_BlitzH7Pro                     1162
 AP_HW_BlitzF7Mini                    1163
 AP_HW_BlitzF7                        1164
+AP_HW_MicoAir743                     1166
 
 AP_HW_ESP32_PERIPH                   1205
 AP_HW_ESP32S3_PERIPH                 1206