diff --git a/libraries/AP_GPS/examples/GPS_UBLOX_passthrough/GPS_UBLOX_passthrough.pde b/libraries/AP_GPS/examples/GPS_UBLOX_passthrough/GPS_UBLOX_passthrough.pde
index 9be280145c..509283d3d1 100644
--- a/libraries/AP_GPS/examples/GPS_UBLOX_passthrough/GPS_UBLOX_passthrough.pde
+++ b/libraries/AP_GPS/examples/GPS_UBLOX_passthrough/GPS_UBLOX_passthrough.pde
@@ -35,6 +35,7 @@
 #include <AP_Notify.h>
 #include <AP_NavEKF.h>
 #include <AP_Rally.h>
+#include <AP_Scheduler.h>
 #include <AP_BattMonitor.h>
 
 const AP_HAL::HAL& hal = AP_HAL_BOARD_DRIVER;