diff --git a/usb/usb_mouse.c b/usb/usb_mouse.c
index 89ae9d7..5763255 100644
--- a/usb/usb_mouse.c
+++ b/usb/usb_mouse.c
@@ -26,7 +26,7 @@
 #include "exceptions.h"
 #include "driver_mem.h"
 
-// // #define DEBUG
+// #define DEBUG
 #include "debug.h"
 
 extern void ltoa(char *buf, long n, unsigned long base);