diff --git a/Blimp/RC_Channel.cpp b/Blimp/RC_Channel.cpp
index ba94d82a17..8742d3e347 100644
--- a/Blimp/RC_Channel.cpp
+++ b/Blimp/RC_Channel.cpp
@@ -58,7 +58,7 @@ RC_Channel * RC_Channels_Blimp::get_arming_channel(void) const
 }
 
 // init_aux_switch_function - initialize aux functions
-void RC_Channel_Blimp::init_aux_function(const aux_func_t ch_option, const AuxSwitchPos ch_flag)
+void RC_Channel_Blimp::init_aux_function(const AUX_FUNC ch_option, const AuxSwitchPos ch_flag)
 {
     // init channel options
     switch (ch_option) {
@@ -99,7 +99,7 @@ void RC_Channel_Blimp::do_aux_function_change_mode(const Mode::Number mode,
 }
 
 // do_aux_function - implement the function invoked by auxiliary switches
-bool RC_Channel_Blimp::do_aux_function(const aux_func_t ch_option, const AuxSwitchPos ch_flag)
+bool RC_Channel_Blimp::do_aux_function(const AUX_FUNC ch_option, const AuxSwitchPos ch_flag)
 {
     switch (ch_option) {
 
diff --git a/Blimp/RC_Channel.h b/Blimp/RC_Channel.h
index ec37259794..4a6e5e0156 100644
--- a/Blimp/RC_Channel.h
+++ b/Blimp/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;
 
 private: