diff --git a/drivers/char/watchdog/shwdt.c b/drivers/char/watchdog/shwdt.c
index 803701b..1355038 100644
--- a/drivers/char/watchdog/shwdt.c
+++ b/drivers/char/watchdog/shwdt.c
@@ -344,7 +344,7 @@
 	return NOTIFY_DONE;
 }
 
-static struct file_operations sh_wdt_fops = {
+static const struct file_operations sh_wdt_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
 	.write		= sh_wdt_write,