diff --git a/package/linuxptp/linuxptp-system-clock.service b/package/linuxptp/linuxptp-system-clock.service
index 73272542cd..a4436a34a7 100644
--- a/package/linuxptp/linuxptp-system-clock.service
+++ b/package/linuxptp/linuxptp-system-clock.service
@@ -1,6 +1,6 @@
 [Unit]
 Description=Precision Time Protocol system clock synchronization
-After=syslog.target network.target
+After=linuxptp.service
 
 [Service]
 ExecStart=/usr/sbin/phc2sys -s /dev/ptp0 -c CLOCK_REALTIME -w -S 1.0
diff --git a/package/linuxptp/linuxptp.service b/package/linuxptp/linuxptp.service
index f690430633..14e9814b06 100644
--- a/package/linuxptp/linuxptp.service
+++ b/package/linuxptp/linuxptp.service
@@ -1,6 +1,8 @@
 [Unit]
 Description=Precision Time Protocol daemon
 After=syslog.target network.target
+Before=time-sync.target
+Wants=time-sync.target
 Wants=linuxptp-system-clock.service
 
 [Service]