diff --git a/ArduPlane/RC_Channel.cpp b/ArduPlane/RC_Channel.cpp
index a2d5041cef..9e9f88c7d0 100644
--- a/ArduPlane/RC_Channel.cpp
+++ b/ArduPlane/RC_Channel.cpp
@@ -27,6 +27,11 @@ bool RC_Channels_Plane::has_valid_input() const
     return true;
 }
 
+RC_Channel * RC_Channels_Plane::get_arming_channel(void) const
+{
+    return plane.channel_rudder;
+}
+
 void RC_Channel_Plane::do_aux_function_change_mode(const Mode::Number number,
                                                    const aux_switch_pos_t ch_flag)
 {
diff --git a/ArduPlane/RC_Channel.h b/ArduPlane/RC_Channel.h
index a1344caa61..d7fd045696 100644
--- a/ArduPlane/RC_Channel.h
+++ b/ArduPlane/RC_Channel.h
@@ -33,6 +33,8 @@ public:
 
     bool has_valid_input() const override;
 
+    RC_Channel *get_arming_channel(void) const override;
+
 protected:
 
     // note that these callbacks are not presently used on Plane: