diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c
index 942103dac30f..c6b2191a4128 100644
--- a/drivers/rtc/rtc-ds1742.c
+++ b/drivers/rtc/rtc-ds1742.c
@@ -219,7 +219,7 @@ static int ds1742_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id __maybe_unused ds1742_rtc_of_match[] = {
+static const struct of_device_id __maybe_unused ds1742_rtc_of_match[] = {
 	{ .compatible = "maxim,ds1742", },
 	{ }
 };