diff --git a/docs/systemd/rmpsd.service b/docs/systemd/rmpsd.service
index 23bd3d1..f826e50 100644
--- a/docs/systemd/rmpsd.service
+++ b/docs/systemd/rmpsd.service
@@ -5,7 +5,7 @@ After=network.target
 [Service]
 Type=simple
 #PIDFile=/run/rmps/rmpsd.pid
-ConfFile=/etc/rmps/rmps.conf
+Environment=ConfFile=/etc/rmps/rmps.conf
 ExecStart=/usr/bin/rmpsd --start -c $ConfFile
 ExecStop=/usr/bin/rmpsd --stop -c $ConfFile
 ExecReload=/usr/bin/rmpsd --restart -c $ConfFile