diff --git a/libraries/AP_RangeFinder/AP_RangeFinder_Bebop.h b/libraries/AP_RangeFinder/AP_RangeFinder_Bebop.h
index b053cd7e32..c907cebc05 100644
--- a/libraries/AP_RangeFinder/AP_RangeFinder_Bebop.h
+++ b/libraries/AP_RangeFinder/AP_RangeFinder_Bebop.h
@@ -92,11 +92,11 @@ public:
 
     ~AP_RangeFinder_Bebop(void);
     static bool detect();
-    void update(void);
+    void update(void) override;
 
 protected:
 
-    virtual MAV_DISTANCE_SENSOR _get_mav_distance_sensor_type() const {
+    MAV_DISTANCE_SENSOR _get_mav_distance_sensor_type() const override {
         return MAV_DISTANCE_SENSOR_LASER;
     }