diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index da9fde8..3f00f9e 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2203,6 +2203,7 @@
 	mutex_unlock(&tty->termios_mutex);
 	return 0;
 }
+EXPORT_SYMBOL(tty_do_resize);
 
 /**
  *	tiocswinsz		-	implement window size set ioctl