diff --git a/libraries/AP_Vehicle/AP_Vehicle.h b/libraries/AP_Vehicle/AP_Vehicle.h
index a93746e232..2d0b0bf786 100644
--- a/libraries/AP_Vehicle/AP_Vehicle.h
+++ b/libraries/AP_Vehicle/AP_Vehicle.h
@@ -25,6 +25,7 @@
 #include <AP_BoardConfig/AP_BoardConfig.h>     // board configuration library
 #include <AP_CANManager/AP_CANManager.h>
 #include <AP_Button/AP_Button.h>
+#include <AP_Compass/AP_Compass.h>
 #include <AP_EFI/AP_EFI.h>
 #include <AP_GPS/AP_GPS.h>
 #include <AP_Generator/AP_Generator.h>