diff --git a/libraries/AP_InertialNav/examples/AP_InertialNav_test/AP_InertialNav_test.pde b/libraries/AP_InertialNav/examples/AP_InertialNav_test/AP_InertialNav_test.pde
index c0a99d90d9..caf27d3df0 100644
--- a/libraries/AP_InertialNav/examples/AP_InertialNav_test/AP_InertialNav_test.pde
+++ b/libraries/AP_InertialNav/examples/AP_InertialNav_test/AP_InertialNav_test.pde
@@ -18,7 +18,6 @@
 #include <AP_Compass.h>         // ArduPilot Mega Magnetometer Library
 #include <AP_Math.h>            // ArduPilot Mega Vector/Matrix math Library
 #include <AP_InertialSensor.h>  // ArduPilot Mega Inertial Sensor (accel & gyro) Library
-#include <AP_IMU.h>             // ArduPilot Mega IMU Library
 #include <AP_PeriodicProcess.h> // Parent header of Timer
 #include <AP_TimerProcess.h>    // TimerProcess is the scheduler for MPU6000 reads.
 #include <AP_AHRS.h>