diff --git a/deploy/systemd/Scert.service b/deploy/systemd/Scert.service
index c12d61d..95010d7 100644
--- a/deploy/systemd/Scert.service
+++ b/deploy/systemd/Scert.service
@@ -13,6 +13,7 @@ Group=Scert
 WorkingDirectory=/scert
 ExecStart=/scert/scert --config /scert/conf/scert.json serve
 Environment=SCERT_BOOTSTRAP_FIREWALL_MODE=external
+Environment=SCERT_SERVER_HOST=127.0.0.1
 KillSignal=SIGTERM
 TimeoutStopSec=30
 Restart=on-failure