diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c
index e251cb06842d..1c84c5debca1 100644
--- a/drivers/rtc/rtc-ds1685.c
+++ b/drivers/rtc/rtc-ds1685.c
@@ -1425,7 +1425,7 @@ ds1685_rtc_poweroff(struct platform_device *pdev)
 
 		/* Set PAB to 1 in Control 4A to power the system down. */
 		dev_warn(&pdev->dev, "Powerdown.\n");
-		msleep(20);
+		mdelay(20);
 		rtc->write(rtc, RTC_EXT_CTRL_4A,
 			   (ctrl4a | RTC_CTRL_4A_PAB));