diff --git a/libraries/AP_InertialSensor/examples/MPU6000/MPU6000.pde b/libraries/AP_InertialSensor/examples/MPU6000/MPU6000.pde
index fb9b0549a79ec4d011dc372827fb50eb5a52d2a6..74d4dea01b876ab39bfa07eb3eb4edc7060b04b5 100644
--- a/libraries/AP_InertialSensor/examples/MPU6000/MPU6000.pde
+++ b/libraries/AP_InertialSensor/examples/MPU6000/MPU6000.pde
@@ -17,6 +17,8 @@
 #include <AP_InertialSensor.h>
 #include <AP_Notify.h>
 #include <AP_GPS.h>
+#include <AP_Baro.h>
+#include <Filter.h>
 #include <DataFlash.h>
 #include <GCS_MAVLink.h>
 
diff --git a/libraries/AP_InertialSensor/examples/OilPan/OilPan.pde b/libraries/AP_InertialSensor/examples/OilPan/OilPan.pde
index d9a39471af640cdfa3ae296b8e10d7ce7a9f5749..40814225c0d5544ed9eb0f803ca7802dd0750ce4 100644
--- a/libraries/AP_InertialSensor/examples/OilPan/OilPan.pde
+++ b/libraries/AP_InertialSensor/examples/OilPan/OilPan.pde
@@ -17,7 +17,9 @@
 #include <AP_InertialSensor.h>
 #include <AP_Notify.h>
 #include <AP_GPS.h>
+#include <AP_Baro.h>
 #include <DataFlash.h>
+#include <Filter.h>
 #include <GCS_MAVLink.h>
 
 const AP_HAL::HAL& hal = AP_HAL_BOARD_DRIVER;
diff --git a/libraries/AP_InertialSensor/examples/PX4/PX4.pde b/libraries/AP_InertialSensor/examples/PX4/PX4.pde
index 2a1d0a3920f0d1b87e4ac5aad715e0bfa2e6511c..39707d1cdbad8e5feb96b0b84777fc253ec04b27 100644
--- a/libraries/AP_InertialSensor/examples/PX4/PX4.pde
+++ b/libraries/AP_InertialSensor/examples/PX4/PX4.pde
@@ -18,6 +18,8 @@
 #include <AP_InertialSensor.h>
 #include <AP_Notify.h>
 #include <AP_GPS.h>
+#include <AP_Baro.h>
+#include <Filter.h>
 #include <DataFlash.h>
 #include <GCS_MAVLink.h>