diff --git a/conf/systemd.service b/conf/systemd.service
index 8402af0..567faa3 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -12,10 +12,12 @@ ExecStart=__YNH_NODE__ main.js
 StandardOutput=syslog
 StandardError=syslog
 SyslogIdentifier=__APP__
-Environment=MONGO_URL=mongodb://localhost:27017/__APP__?replicaSet=rs01
-Environment=MONGO_OPLOG_URL=mongodb://localhost:27017/local?replicaSet=rs01
+Environment=MONGO_URL=mongodb://localhost:27017/__APP__?replSet=rs01
+Environment=MONGO_OPLOG_URL=mongodb://localhost:27017/local?replSet=rs01
 Environment=ROOT_URL=https://__DOMAIN____PATH__
 Environment=PORT=__PORT__
 
 [Install]
 WantedBy=multi-user.target
+
+MONGO_OPLOG_URL=mongodb://localhost:27017/local?replSet=rs01
\ No newline at end of file