diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index a89a95fb..c07dc58 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -1130,7 +1130,7 @@
 }
 
 
-static struct tty_operations hvsi_ops = {
+static const struct tty_operations hvsi_ops = {
 	.open = hvsi_open,
 	.close = hvsi_close,
 	.write = hvsi_write,