diff --git a/Tools/AP_Periph/AP_Periph.cpp b/Tools/AP_Periph/AP_Periph.cpp
index 446078ba0f..3f61511a59 100644
--- a/Tools/AP_Periph/AP_Periph.cpp
+++ b/Tools/AP_Periph/AP_Periph.cpp
@@ -24,6 +24,7 @@
 #include <AP_HAL/AP_HAL_Boards.h>
 #include "AP_Periph.h"
 #include <stdio.h>
+#include <dronecan_msgs.h>
 
 #if CONFIG_HAL_BOARD == HAL_BOARD_CHIBIOS
 #include <AP_HAL_ChibiOS/hwdef/common/stm32_util.h>
diff --git a/Tools/AP_Periph/AP_Periph.h b/Tools/AP_Periph/AP_Periph.h
index f3908cf35c..c885f26f8e 100644
--- a/Tools/AP_Periph/AP_Periph.h
+++ b/Tools/AP_Periph/AP_Periph.h
@@ -266,6 +266,9 @@ class AP_Periph_FW {
 
 #if HAL_GCS_ENABLED
     GCS_Periph _gcs;
+#endif
+#ifdef HAL_PERIPH_ARM_MONITORING_ENABLE
+    bool arm_update_status;
 #endif
     // setup the var_info table
     AP_Param param_loader{var_info};
diff --git a/Tools/AP_Periph/Parameters.h b/Tools/AP_Periph/Parameters.h
index c0671e5873..ff6413f926 100644
--- a/Tools/AP_Periph/Parameters.h
+++ b/Tools/AP_Periph/Parameters.h
@@ -153,6 +153,10 @@ class Parameters {
     AP_Int16 sysid_this_mav;
 #endif
 
+#ifdef HAL_PERIPH_ARM_MONITORING_ENABLE
+    AP_Int32 disarm_delay;
+#endif
+
 #ifdef HAL_PERIPH_ENABLE_EFI
     AP_Int32 efi_baudrate;
     AP_Int8 efi_port;