diff --git a/libraries/AP_GPS/AP_GPS.h b/libraries/AP_GPS/AP_GPS.h
index aa0fd4aa7c..132973945e 100644
--- a/libraries/AP_GPS/AP_GPS.h
+++ b/libraries/AP_GPS/AP_GPS.h
@@ -7,5 +7,6 @@
 #include "AP_GPS_SIRF.h"
 #include "AP_GPS_UBLOX.h"
 #include "AP_GPS_MTK.h"
+#include "AP_GPS_IMU.h"
 #include "AP_GPS_None.h"