diff --git a/ArduPlane/GCS_Mavlink.cpp b/ArduPlane/GCS_Mavlink.cpp
index a58dd90967..81e0210b62 100644
--- a/ArduPlane/GCS_Mavlink.cpp
+++ b/ArduPlane/GCS_Mavlink.cpp
@@ -245,14 +245,6 @@ float GCS_MAVLINK_Plane::vfr_hud_climbrate() const
     return AP::baro().get_climb_rate();
 }
 
-// report simulator state
-void GCS_MAVLINK_Plane::send_simstate() const
-{
-#if CONFIG_HAL_BOARD == HAL_BOARD_SITL
-    GCS_MAVLINK::send_simstate();
-#endif
-}
-
 void GCS_MAVLINK_Plane::send_wind() const
 {
     const Vector3f wind = AP::ahrs().wind_estimate();
@@ -1409,4 +1401,4 @@ int8_t GCS_MAVLINK_Plane::high_latency_air_temperature() const
     }
     return air_temperature;
 }
-#endif // HAL_HIGH_LATENCY2_ENABLED
\ No newline at end of file
+#endif // HAL_HIGH_LATENCY2_ENABLED
diff --git a/ArduPlane/GCS_Mavlink.h b/ArduPlane/GCS_Mavlink.h
index 53236a537b..8f0c1e4426 100644
--- a/ArduPlane/GCS_Mavlink.h
+++ b/ArduPlane/GCS_Mavlink.h
@@ -29,7 +29,6 @@ protected:
 
     void send_aoa_ssa();
     void send_attitude() const override;
-    void send_simstate() const override;
     void send_wind() const;
 
     bool persist_streamrates() const override { return true; }