diff --git a/drivers/rtc/ds174x.c b/drivers/rtc/ds174x.c
index 3f486b1..43e6ab7 100644
--- a/drivers/rtc/ds174x.c
+++ b/drivers/rtc/ds174x.c
@@ -117,7 +117,7 @@
 	return 0;
 }
 
-void rtc_set( struct rtc_time *tmp )
+int rtc_set( struct rtc_time *tmp )
 {
 	uchar reg_a;
 #ifdef RTC_DEBUG
@@ -143,6 +143,8 @@
 
 	/* unlock clock registers after read */
 	rtc_write( RTC_CONTROLA, ( reg_a  & ~RTC_CA_WRITE ));
+
+	return 0;
 }
 
 void rtc_reset (void)