diff --git a/server.js b/server.js
index 6e01e00..5fc0a67 100644
--- a/server.js
+++ b/server.js
@@ -6,6 +6,7 @@ const fs = require('fs')
 const http = require('http')
 const exec = require('child_process').exec
 const port = process.env.PORT || 3000
+const host = process.env.HOST || 'localhost'
 const hostname = require('os').hostname()
 const MEMINFO_FILE_PATH = '/proc/meminfo'
 const TEMPERATURE_FILE_PATH = '/sys/class/thermal/thermal_zone0/temp'