diff --git a/libraries/AP_Logger/AP_Logger.h b/libraries/AP_Logger/AP_Logger.h
index 3d842c2eb1..499bc85072 100644
--- a/libraries/AP_Logger/AP_Logger.h
+++ b/libraries/AP_Logger/AP_Logger.h
@@ -4,6 +4,9 @@
 #pragma once
 
 #include <AP_HAL/AP_HAL.h>
+#include <AP_AHRS/AP_AHRS.h>
+#include <AP_AHRS/AP_AHRS_DCM.h>
+#include <AP_AHRS/AP_AHRS_NavEKF.h>
 #include <AP_Common/AP_Common.h>
 #include <AP_Param/AP_Param.h>
 #include <AP_InertialSensor/AP_InertialSensor.h>