diff --git a/Tools/AP_Bootloader/board_types.txt b/Tools/AP_Bootloader/board_types.txt
index 921b4d241c..d48a100112 100644
--- a/Tools/AP_Bootloader/board_types.txt
+++ b/Tools/AP_Bootloader/board_types.txt
@@ -98,4 +98,5 @@ AP_HW_HITEC_MOSAIC                   1016
 AP_HW_MRO_PIXRACER_PRO               1017
 AP_HW_TWD_H7                         1018
 AP_HW_MAMBA405                       1019
+AP_HW_H31_PIXC4                      1020