diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 86d290e..3baa2ab 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -1125,7 +1125,7 @@
 
 module_exit(epca_module_exit);
 
-static struct tty_operations pc_ops = {
+static const struct tty_operations pc_ops = {
 	.open = pc_open,
 	.close = pc_close,
 	.write = pc_write,