diff --git a/Rover/RC_Channel.cpp b/Rover/RC_Channel.cpp
index 9a89b66d61..eba8533119 100644
--- a/Rover/RC_Channel.cpp
+++ b/Rover/RC_Channel.cpp
@@ -26,7 +26,7 @@ void RC_Channel_Rover::mode_switch_changed(modeswitch_pos_t new_pos)
 }
 
 // init_aux_switch_function - initialize aux functions
-void RC_Channel_Rover::init_aux_function(const aux_func_t ch_option, const AuxSwitchPos ch_flag)
+void RC_Channel_Rover::init_aux_function(const AUX_FUNC ch_option, const AuxSwitchPos ch_flag)
 {
     // init channel options
     switch (ch_option) {
@@ -130,7 +130,7 @@ void RC_Channel_Rover::do_aux_function_sailboat_motor_3pos(const AuxSwitchPos ch
     }
 }
 
-bool RC_Channel_Rover::do_aux_function(const aux_func_t ch_option, const AuxSwitchPos ch_flag)
+bool RC_Channel_Rover::do_aux_function(const AUX_FUNC ch_option, const AuxSwitchPos ch_flag)
 {
     switch (ch_option) {
     case AUX_FUNC::DO_NOTHING:
diff --git a/Rover/RC_Channel.h b/Rover/RC_Channel.h
index d25d714aa2..01c83da59b 100644
--- a/Rover/RC_Channel.h
+++ b/Rover/RC_Channel.h
@@ -11,8 +11,8 @@ public:
 
 protected:
 
-    void init_aux_function(aux_func_t ch_option, AuxSwitchPos) override;
-    bool do_aux_function(aux_func_t ch_option, AuxSwitchPos) override;
+    void init_aux_function(AUX_FUNC ch_option, AuxSwitchPos) override;
+    bool do_aux_function(AUX_FUNC ch_option, AuxSwitchPos) override;
 
     // called when the mode switch changes position:
     void mode_switch_changed(modeswitch_pos_t new_pos) override;