diff --git a/libraries/GCS_MAVLink/GCS.h b/libraries/GCS_MAVLink/GCS.h
index 1160d15a9d..d3cfe2b5ed 100644
--- a/libraries/GCS_MAVLink/GCS.h
+++ b/libraries/GCS_MAVLink/GCS.h
@@ -245,7 +245,7 @@ public:
     void send_scaled_pressure2();
     virtual void send_scaled_pressure3(); // allow sub to override this
     void send_sensor_offsets();
-    virtual void send_simstate() const;
+    void send_simstate() const;
     void send_sim_state() const;
     void send_ahrs();
     void send_battery2();