Fix functions with empty params (#19647)

* Fix functions with empty params

* Found a bunch more

1 files changed, 2 insertions, 2 deletions

diff --git a/keyboards/hadron/ver2/keymaps/side_numpad/keymap.c b/keyboards/hadron/ver2/keymaps/side_numpad/keymap.c
index 04b30e3437..f352b1c851 100644
--- a/keyboards/hadron/ver2/keymaps/side_numpad/keymap.c
+++ b/keyboards/hadron/ver2/keymaps/side_numpad/keymap.c
@@ -325,13 +325,13 @@ void matrix_init_user(void) {
 
 #ifdef AUDIO_ENABLE
 
-void startup_user()
+void startup_user(void)
 {
     _delay_ms(20); // gets rid of tick
     PLAY_SONG(tone_startup);
 }
 
-void shutdown_user()
+void shutdown_user(void)
 {cc
     PLAY_SONG(tone_goodbye);
     _delay_ms(150);