diff --git a/libraries/AP_HAL_ChibiOS/Util.cpp b/libraries/AP_HAL_ChibiOS/Util.cpp
index 7e9045cf61..7d56981c5c 100644
--- a/libraries/AP_HAL_ChibiOS/Util.cpp
+++ b/libraries/AP_HAL_ChibiOS/Util.cpp
@@ -27,6 +27,7 @@
 #include "hwdef/common/flash.h"
 #include <AP_ROMFS/AP_ROMFS.h>
 #include <AP_Common/ExpandingString.h>
+#include <AP_InternalError/AP_InternalError.h>
 #include "sdcard.h"
 #include "shared_dma.h"
 #if defined(HAL_PWM_ALARM) || HAL_DSHOT_ALARM_ENABLED || HAL_CANMANAGER_ENABLED || HAL_USE_PWM == TRUE