diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 5251c5f6f96edf601891d123f534d8aab7306591..61b9d33681484d7cb79d3e617d78cf44580d8d40 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1403,8 +1403,9 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
 	unsigned long flags;
 
 	if (old)
-		hso_dbg(0x16, "Termios called with: cflags new[%d] - old[%d]\n",
-			tty->termios.c_cflag, old->c_cflag);
+		hso_dbg(0x16, "Termios called with: cflags new[%u] - old[%u]\n",
+			(unsigned int)tty->termios.c_cflag,
+			(unsigned int)old->c_cflag);
 
 	/* the actual setup */
 	spin_lock_irqsave(&serial->serial_lock, flags);