5 files changed, 10 insertions, 10 deletions
diff --git a/keyboards/helix/pico/keymaps/default/keymap.c b/keyboards/helix/pico/keymaps/default/keymap.c
index 21418f2d2f..101a54bda6 100644
--- a/keyboards/helix/pico/keymaps/default/keymap.c
+++ b/keyboards/helix/pico/keymaps/default/keymap.c
@@ -340,12 +340,12 @@ void matrix_init_user(void) {
 
 #ifdef AUDIO_ENABLE
 
-void startup_user()
+void startup_user(void)
 {
     _delay_ms(50); // gets rid of tick
 }
 
-void shutdown_user()
+void shutdown_user(void)
 {
     _delay_ms(150);
     stop_all_notes();
diff --git a/keyboards/helix/pico/keymaps/mtei/keymap.c b/keyboards/helix/pico/keymaps/mtei/keymap.c
index 17a98f4d7f..6a5f7d295a 100644
--- a/keyboards/helix/pico/keymaps/mtei/keymap.c
+++ b/keyboards/helix/pico/keymaps/mtei/keymap.c
@@ -344,12 +344,12 @@ void matrix_init_user(void) {
 
 #ifdef AUDIO_ENABLE
 
-void startup_user()
+void startup_user(void)
 {
     _delay_ms(50); // gets rid of tick
 }
 
-void shutdown_user()
+void shutdown_user(void)
 {
     _delay_ms(150);
     stop_all_notes();
diff --git a/keyboards/helix/rev2/keymaps/default/keymap.c b/keyboards/helix/rev2/keymaps/default/keymap.c
index cc61ec4caa..464b8bbd80 100644
--- a/keyboards/helix/rev2/keymaps/default/keymap.c
+++ b/keyboards/helix/rev2/keymaps/default/keymap.c
@@ -479,12 +479,12 @@ void matrix_init_user(void) {
 
 #ifdef AUDIO_ENABLE
 
-void startup_user()
+void startup_user(void)
 {
     _delay_ms(20); // gets rid of tick
 }
 
-void shutdown_user()
+void shutdown_user(void)
 {
     _delay_ms(150);
     stop_all_notes();
diff --git a/keyboards/helix/rev2/keymaps/froggy/keymap.c b/keyboards/helix/rev2/keymaps/froggy/keymap.c
index 3b6d3f2065..ae96f576af 100644
--- a/keyboards/helix/rev2/keymaps/froggy/keymap.c
+++ b/keyboards/helix/rev2/keymaps/froggy/keymap.c
@@ -464,12 +464,12 @@ void matrix_init_user(void) {
 
 #ifdef AUDIO_ENABLE
 
-void startup_user()
+void startup_user(void)
 {
     _delay_ms(20); // gets rid of tick
 }
 
-void shutdown_user()
+void shutdown_user(void)
 {
     _delay_ms(150);
     stop_all_notes();
diff --git a/keyboards/helix/rev2/keymaps/yshrsmz/keymap.c b/keyboards/helix/rev2/keymaps/yshrsmz/keymap.c
index d2a460d0b5..5f22ed2741 100644
--- a/keyboards/helix/rev2/keymaps/yshrsmz/keymap.c
+++ b/keyboards/helix/rev2/keymaps/yshrsmz/keymap.c
@@ -459,12 +459,12 @@ void matrix_init_user(void) {
 
 #ifdef AUDIO_ENABLE
 
-void startup_user()
+void startup_user(void)
 {
     _delay_ms(20); // gets rid of tick
 }
 
-void shutdown_user()
+void shutdown_user(void)
 {
     _delay_ms(150);
     stop_all_notes();