diff --git a/recipes-support/chrony/files/chrony.conf b/recipes-support/chrony/files/chrony.conf
index d26cbf7..4aba0c0 100644
--- a/recipes-support/chrony/files/chrony.conf
+++ b/recipes-support/chrony/files/chrony.conf
@@ -9,6 +9,7 @@ refclock SHM 0 poll 1 refid GPS offset 0.0 delay 2 filter 16
 
 rtcdevice /dev/rtc
 rtconutc
+rtcsync
 
 logchange 0.5
 local stratum 10