diff --git a/example/trojan-go.service b/example/trojan-go.service
index 083d612..1c30245 100644
--- a/example/trojan-go.service
+++ b/example/trojan-go.service
@@ -11,6 +11,7 @@ NoNewPrivileges=true
 ExecStart=/usr/bin/trojan-go -config /etc/trojan-go/config.json
 Restart=on-failure
 RestartSec=10s
+LimitNOFILE=infinity
 
 [Install]
 WantedBy=multi-user.target
diff --git a/example/trojan-go@.service b/example/trojan-go@.service
index d2d1c36..7e8a67e 100644
--- a/example/trojan-go@.service
+++ b/example/trojan-go@.service
@@ -11,6 +11,7 @@ NoNewPrivileges=true
 ExecStart=/usr/bin/trojan-go -config /etc/trojan-go/%i.json
 Restart=on-failure
 RestartSec=10s
+LimitNOFILE=infinity
 
 [Install]
 WantedBy=multi-user.target