diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index df472c7480a02ac6856bdd4234dda5b4590c1272..e143198aeb028e0bec63189cf8d4ace46e778a70 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -383,11 +383,7 @@ static struct usb_serial_driver option_1port_device = {
 	.read_int_callback = option_instat_callback,
 };
 
-#ifdef CONFIG_USB_DEBUG
 static int debug;
-#else
-#define debug 0
-#endif
 
 /* per port private data */
 
@@ -991,8 +987,5 @@ MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
 
-#ifdef CONFIG_USB_DEBUG
 module_param(debug, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "Debug messages");
-#endif
-
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 6b7ed333386a67eafcb57f7730b5439666641a3e..706033753adb7836db59e343310022e2469436e5 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -766,7 +766,5 @@ MODULE_LICENSE("GPL");
 module_param(nmea, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(nmea, "NMEA streaming");
 
-#ifdef CONFIG_USB_DEBUG
 module_param(debug, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "Debug messages");
-#endif