diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index e6ed540..e95cc6f 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -826,7 +826,7 @@
 	return 0;
 }
 
-static struct dev_pm_ops sh_rtc_dev_pm_ops = {
+static const struct dev_pm_ops sh_rtc_dev_pm_ops = {
 	.suspend = sh_rtc_suspend,
 	.resume = sh_rtc_resume,
 };