diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c
index 9be81fd..9c68ec9 100644
--- a/drivers/rtc/rtc-ds1672.c
+++ b/drivers/rtc/rtc-ds1672.c
@@ -156,7 +156,7 @@
 }
 static DEVICE_ATTR(control, S_IRUGO, show_control, NULL);
 
-static struct rtc_class_ops ds1672_rtc_ops = {
+static const struct rtc_class_ops ds1672_rtc_ops = {
 	.read_time	= ds1672_rtc_read_time,
 	.set_time	= ds1672_rtc_set_time,
 	.set_mmss	= ds1672_rtc_set_mmss,