diff --git a/sys/kern/tty.c b/sys/kern/tty.c
index 86581649b4c..a49583e24a4 100644
--- a/sys/kern/tty.c
+++ b/sys/kern/tty.c
@@ -2641,7 +2641,8 @@ ttymalloc(struct tty *tp)
 	if (tp)
 		return(tp);
 	tp = malloc(sizeof *tp, M_TTYS, M_WAITOK | M_ZERO);
-	ttyregister(tp);
+	tp->t_timeout = -1;
+	SLIST_INSERT_HEAD(&tty_list, tp, t_list);
 	return (tp);
 }
 
@@ -2657,13 +2658,6 @@ ttyfree(struct tty *tp)
 }
 #endif /* 0 */
 
-void
-ttyregister(struct tty *tp)
-{
-	tp->t_timeout = -1;
-	SLIST_INSERT_HEAD(&tty_list, tp, t_list);
-}
-
 static int
 sysctl_kern_ttys(SYSCTL_HANDLER_ARGS)
 {
diff --git a/sys/sys/tty.h b/sys/sys/tty.h
index f5330b9768b..5565456510b 100644
--- a/sys/sys/tty.h
+++ b/sys/sys/tty.h
@@ -306,7 +306,6 @@ int	 ttylclose(struct tty *tp, int flag);
 struct tty *ttymalloc(struct tty *tp);
 int	 ttymodem(struct tty *tp, int flag);
 int	 ttyopen(dev_t device, struct tty *tp);
-void	 ttyregister(struct tty *tp);
 int	 ttysleep(struct tty *tp, void *chan, int pri, char *wmesg, int timo);
 int	 ttywait(struct tty *tp);
 int	 unputc(struct clist *q);