diff --git a/Tools/AP_Bootloader/board_types.txt b/Tools/AP_Bootloader/board_types.txt
index b306e7615810cb..fddf5c3343dd1a 100644
--- a/Tools/AP_Bootloader/board_types.txt
+++ b/Tools/AP_Bootloader/board_types.txt
@@ -357,6 +357,13 @@ AP_HW_UAV-DEV-UM982-G4               5224
 AP_HW_UAV-DEV-M20D-G4                5225
 AP_HW_UAV-DEV-Sensorboard-G4         5226
 
+# IDs 5240-5249 reserved for TM IT-Systemhaus
+AP_HW_TM-SYS-BeastFC                 5240
+AP_HW_TM-SYS-Sensornode              5241
+AP_HW_TM-SYS-OpenHDFPV               5242
+AP_HW_TM-SYS-VisualNAV               5243
+AP_HW_TM-SYS-Airspeed                5244
+
 #IDs 5301-5399 reserved for Sierra Aerospace
 AP_HW_Sierra-TrueNavPro-G4           5301
 AP_HW_Sierra-TrueNavIC               5302