--- rspamd.service.orig	2015-10-14 19:31:57.147935738 +0200
+++ rspamd.service	2015-10-14 20:36:07.848964984 +0200
@@ -3,8 +3,7 @@
 After=nss-lookup.target
 
 [Service]
-ExecStart=/usr/bin/rspamd -c /etc/rspamd/rspamd.conf -f
-User=_rspamd
+ExecStart=/usr/bin/rspamd -c /etc/rspamd/rspamd.conf -f -u _rspamd -g _rspamd
 
 [Install]
 WantedBy=multi-user.target