diff --git a/protocol/iwrap.mk b/protocol/iwrap.mk
index e1d0efe..3b63efe 100644
--- a/protocol/iwrap.mk
+++ b/protocol/iwrap.mk
@@ -8,17 +8,19 @@ SRC +=	$(IWRAP_DIR)/main.c \
 	$(COMMON_DIR)/sendchar_uart.c \
 	$(COMMON_DIR)/uart.c
 
+# Search Path
+VPATH += $(TOP_DIR)/protocol/iwrap
+
+
 # TODO: compatible with LUFA and PJRC
 # V-USB
 #
-#VUSB_DIR = protocol/vusb
-#OPT_DEFS += -DPROTOCOL_VUSB
-#SRC +=	$(VUSB_DIR)/vusb.c \
-#	$(VUSB_DIR)/usbdrv/usbdrv.c \
-#	$(VUSB_DIR)/usbdrv/usbdrvasm.S \
-#	$(VUSB_DIR)/usbdrv/oddebug.c
-#VPATH += $(TOP_DIR)/protocol/vusb:$(TOP_DIR)/protocol/vusb/usbdrv
+VUSB_DIR = protocol/vusb
+OPT_DEFS += -DPROTOCOL_VUSB
+SRC +=	$(VUSB_DIR)/vusb.c \
+	$(VUSB_DIR)/usbdrv/usbdrv.c \
+	$(VUSB_DIR)/usbdrv/usbdrvasm.S \
+	$(VUSB_DIR)/usbdrv/oddebug.c
+VPATH += $(TOP_DIR)/protocol/vusb:$(TOP_DIR)/protocol/vusb/usbdrv
 
 
-# Search Path
-VPATH += $(TOP_DIR)/protocol/iwrap