[Service]
Type=forking
User=plom
-ExecStart=/bin/sh -c 'screen -d -m ~/start_plomlombot.sh plomlombob "#plomlompomtest"'
+ExecStart=/bin/sh -c 'screen -d -m -S plomlombot ~/start_plomlombot.sh plomlombob "#plomlompomtest"'
[Install]
WantedBy=multi-user.target