diff --git a/system/dkimpy-milter.service b/system/dkimpy-milter.service.in
similarity index 59%
rename from system/dkimpy-milter.service
rename to system/dkimpy-milter.service.in
index 244ee6c..cd45225 100644
--- a/system/dkimpy-milter.service
+++ b/system/dkimpy-milter.service.in
@@ -5,8 +5,8 @@ After=network.target
 
 [Service]
 Type=simple
-PIDFile=/run/dkimpy-milter/dkimpy-milter.pid
-ExecStart=/usr/local/bin/dkimpy-milter /usr/local/etc/dkimpy-milter.conf 
+PIDFile=@RUNSTATEDIR@/dkimpy-milter.pid
+ExecStart=@BINDIR@/dkimpy-milter @SYSCONFDIR@/dkimpy-milter.conf
 
 [Install]
 WantedBy=multi-user.target