diff --git a/conf/systemd.service b/conf/systemd.service
index 20acebb..3b32c24 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -10,6 +10,7 @@ User=__APP__
 Group=__APP__
 WorkingDirectory=__INSTALL_DIR__/
 Environment="__YNH_NODE_LOAD_PATH__"
+Environment="NODE_ENV=production"
 ExecStart=__YNH_NODE__ app.js
 StandardOutput=append:/var/log/__APP__/__APP__.log
 Restart=always