diff --git a/src/rpm/systemd/elasticsearch.service b/src/rpm/systemd/elasticsearch.service
index c68c5054391..740639ef74e 100644
--- a/src/rpm/systemd/elasticsearch.service
+++ b/src/rpm/systemd/elasticsearch.service
@@ -9,6 +9,10 @@ User=elasticsearch
 Group=elasticsearch
 PIDFile=/var/run/elasticsearch/elasticsearch.pid
 ExecStart=/usr/share/elasticsearch/bin/elasticsearch -p /var/run/elasticsearch/elasticsearch.pid -Des.default.config=$CONF_FILE -Des.default.path.home=$ES_HOME -Des.default.path.logs=$LOG_DIR -Des.default.path.data=$DATA_DIR -Des.default.path.work=$WORK_DIR -Des.default.path.conf=$CONF_DIR
+# See MAX_OPEN_FILES in sysconfig
+LimitNOFILE=65535
+# See MAX_LOCKED_MEMORY in sysconfig, use "infinity" when MAX_LOCKED_MEMORY=unlimited and using bootstrap.mlockall: true
+#LimitMEMLOCK=infinity
 
 [Install]
 WantedBy=multi-user.target