1 files changed, 1 insertions, 0 deletions

diff --git a/build_keyboard.mk b/build_keyboard.mk
index 4a6fc0980..eea8d5919 100644
--- a/build_keyboard.mk
+++ b/build_keyboard.mk
@@ -141,6 +141,7 @@ endif
 
 ifeq ($(strip $(MIDI_ENABLE)), yes)
     OPT_DEFS += -DMIDI_ENABLE
+        SRC += $(QUANTUM_DIR)/process_keycode/process_music.c
         SRC += $(QUANTUM_DIR)/process_keycode/process_midi.c
 endif