diff --git a/protocol/lufa/lufa.c b/protocol/lufa/lufa.c
index 58201e5c9..16a602df1 100644
--- a/protocol/lufa/lufa.c
+++ b/protocol/lufa/lufa.c
@@ -49,10 +49,6 @@
 #endif
 #include "suspend.h"
 
-#ifdef SERIAL_MOUSE_ENABLE
-#include "serial_mouse.h"
-#endif
-
 #include "descriptor.h"
 #include "lufa.h"
 
@@ -575,10 +571,6 @@ int main(void)
     sleep_led_init();
 #endif
 
-#ifdef SERIAL_MOUSE_ENABLE
-    serial_mouse_init();
-#endif
-
     print("Keyboard start.\n");
     while (1) {
         while (USB_DeviceState == DEVICE_STATE_Suspended) {
@@ -590,10 +582,6 @@ int main(void)
 
         keyboard_task();
 
-#ifdef SERIAL_MOUSE_ENABLE
-        serial_mouse_task();
-#endif
-
 #if !defined(INTERRUPT_CONTROL_ENDPOINT)
         USB_USBTask();
 #endif