1 files changed, 2 insertions, 1 deletions

diff --git a/keyboards/sck/gtm/keymaps/vol/keymap.c b/keyboards/sck/gtm/keymaps/vol/keymap.c
index e3d01439d..3eaa696bb 100644
--- a/keyboards/sck/gtm/keymaps/vol/keymap.c
+++ b/keyboards/sck/gtm/keymaps/vol/keymap.c
@@ -14,10 +14,11 @@ void matrix_init_user(void) {
   debug_config.enable = 1;
 }
 
-void encoder_update_user(int8_t index, bool clockwise) {
+bool encoder_update_user(uint8_t index, bool clockwise) {
     if (clockwise) {
      tap_code(KC_VOLU);
     } else {
       tap_code(KC_VOLD);
     }
+    return true;
 }