diff --git a/libraries/AP_Vehicle/AP_Vehicle_Type.h b/libraries/AP_Vehicle/AP_Vehicle_Type.h
index 41374dd170..027c15d760 100644
--- a/libraries/AP_Vehicle/AP_Vehicle_Type.h
+++ b/libraries/AP_Vehicle/AP_Vehicle_Type.h
@@ -29,6 +29,7 @@
 #define APM_BUILD_iofirmware     8
 #define APM_BUILD_AP_Periph      9
 #define APM_BUILD_AP_DAL_Standalone 10
+#define APM_BUILD_AP_Bootloader  11
 
 #ifndef APM_BUILD_DIRECTORY
 #define APM_BUILD_DIRECTORY APM_BUILD_UNKNOWN