diff --git a/src/s_sound.c b/src/s_sound.c
index 2dfd97aee..75e3b07b8 100644
--- a/src/s_sound.c
+++ b/src/s_sound.c
@@ -93,6 +93,13 @@ consvar_t cv_numChannels = {"snd_channels", "32", CV_SAVE|CV_CALL, CV_Unsigned,
 
 static consvar_t surround = {"surround", "Off", CV_SAVE, CV_OnOff, NULL, 0, NULL, NULL, 0, 0, NULL};
 
+#if defined(HAVE_MIXERX) && !defined(HAVE_MIXER) // mixer_sound.c defines these with static handler methods
+static CV_PossibleValue_t midiplayer_cons_t[] = {{MIDI_OPNMIDI, "OPNMIDI"}, {MIDI_Fluidsynth, "Fluidsynth"}, {MIDI_Timidity, "Timidity"}, {MIDI_Native, "Native"}, {0, NULL}};
+consvar_t cv_midiplayer = {"midiplayer", "OPNMIDI" /*MIDI_OPNMIDI*/, CV_CALL|CV_NOINIT|CV_SAVE, midiplayer_cons_t, NULL, 0, NULL, NULL, 0, 0, NULL};
+consvar_t cv_midisoundfontpath = {"midisoundfont", "sf2/8bit.sf2", CV_CALL|CV_NOINIT|CV_SAVE, NULL, NULL, 0, NULL, NULL, 0, 0, NULL};
+consvar_t cv_miditimiditypath = {"midisoundbank", "./timidity", CV_SAVE, NULL, NULL, 0, NULL, NULL, 0, 0, NULL};
+#endif
+
 #define S_MAX_VOLUME 127
 
 // when to clip out sounds
diff --git a/src/sdl/mixer_sound.c b/src/sdl/mixer_sound.c
index def0bcd8b..6a6bea7e4 100644
--- a/src/sdl/mixer_sound.c
+++ b/src/sdl/mixer_sound.c
@@ -149,6 +149,8 @@ static void MidiSoundfontPath_Onchange(void)
 	}
 }
 
+// make sure that s_sound.c does not already verify these
+// which happens when: defined(HAVE_MIXERX) && !defined(HAVE_MIXER)
 static CV_PossibleValue_t midiplayer_cons_t[] = {{MIDI_OPNMIDI, "OPNMIDI"}, {MIDI_Fluidsynth, "Fluidsynth"}, {MIDI_Timidity, "Timidity"}, {MIDI_Native, "Native"}, {0, NULL}};
 consvar_t cv_midiplayer = {"midiplayer", "OPNMIDI" /*MIDI_OPNMIDI*/, CV_CALL|CV_NOINIT|CV_SAVE, midiplayer_cons_t, Midiplayer_Onchange, 0, NULL, NULL, 0, 0, NULL};
 consvar_t cv_midisoundfontpath = {"midisoundfont", "sf2/8bit.sf2", CV_CALL|CV_NOINIT|CV_SAVE, NULL, MidiSoundfontPath_Onchange, 0, NULL, NULL, 0, 0, NULL};