diff --git a/docs/systemd/monolith-example.service b/docs/systemd/monolith-example.service
index 731c6159b..237120ffb 100644
--- a/docs/systemd/monolith-example.service
+++ b/docs/systemd/monolith-example.service
@@ -13,6 +13,7 @@ Group=dendrite
 WorkingDirectory=/opt/dendrite/
 ExecStart=/opt/dendrite/bin/dendrite-monolith-server
 Restart=always
+LimitNOFILE=65535
 
 [Install]
 WantedBy=multi-user.target