diff --git a/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde b/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde
index 723ad0db02..92ba0f248c 100644
--- a/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde
+++ b/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde
@@ -15,8 +15,11 @@
 #include <AP_GPS.h>
 #include <AP_AHRS.h>
 #include <AP_Math.h>
+#include <AP_AnalogSource.h>
+#include <AP_AnalogSource_Arduino.h>
 #include <AP_Common.h>
 #include <AP_Compass.h>
+#include <AP_Airspeed.h>
 #include <AP_Baro.h>
 #include <DataFlash.h>
 #include <APM_RC.h>