diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 34dd4c3..80d3eed 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -224,7 +224,7 @@
         tty->termios->c_cflag |= (CS8 | CREAD);
 }
 
-static struct tty_operations pty_ops = {
+static const struct tty_operations pty_ops = {
 	.open = pty_open,
 	.close = pty_close,
 	.write = pty_write,