$(LUFA_DIR)/descriptor.c \
$(LUFA_SRC_USB)
-ifeq ($(MIDI_ENABLE), yes)
+ifeq ($(strip $(MIDI_ENABLE)), yes)
LUFA_SRC += $(LUFA_DIR)/midi/midi.c \
$(LUFA_DIR)/midi/midi_device.c \
$(LUFA_DIR)/midi/bytequeue/bytequeue.c \
$(LUFA_SRC_USBCLASS)
endif
-ifeq ($(BLUETOOTH_ENABLE), yes)
+ifeq ($(strip $(BLUETOOTH_ENABLE)), yes)
LUFA_SRC += $(LUFA_DIR)/bluetooth.c \
$(TMK_DIR)/protocol/serial_uart.c
endif