diff --git a/support/systemd/rts-awgtpman@.service b/support/systemd/rts-awgtpman@.service
index 3b31d8f1839817b4ed25296a57cca89c3e9df378..4237ef72ffb322c489ece884a8aea7a044e04170 100644
--- a/support/systemd/rts-awgtpman@.service
+++ b/support/systemd/rts-awgtpman@.service
@@ -11,3 +11,4 @@ CapabilityBoundingSet=CAP_SYS_NICE
 AmbientCapabilities=CAP_SYS_NICE
 ExecStart=/usr/bin/rts_awgtpman_exec %i
 Restart=always
+EnvironmentFile=/etc/advligorts/systemd_env