diff --git a/include/linux/tty.h b/include/linux/tty.h
index d6f0529..6660c41 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -420,6 +420,8 @@
 extern void tty_throttle(struct tty_struct *tty);
 extern void tty_unthrottle(struct tty_struct *tty);
 extern int tty_do_resize(struct tty_struct *tty, struct winsize *ws);
+extern void tty_driver_remove_tty(struct tty_driver *driver,
+				  struct tty_struct *tty);
 extern void tty_shutdown(struct tty_struct *tty);
 extern void tty_free_termios(struct tty_struct *tty);
 extern int is_current_pgrp_orphaned(void);