diff --git a/lib/wifi/index.js b/lib/wifi/index.js
index 9688153..f330df4 100644
--- a/lib/wifi/index.js
+++ b/lib/wifi/index.js
@@ -16,6 +16,7 @@ class wifi {
 	constructor () {
 		this._callback = () => {}
 		this._entry = null
+		this._ssid = null
 	}
 	list (callback) {
 		exec(iwlist, (err, stdout, stderr) => {
@@ -28,7 +29,7 @@ class wifi {
 			let line
 			for (let l of lines) {
 				line = l.replace('ESSID:',  '').trim()
-				if (line != '""') {
+				if (line !== '""') {
 					line = line.replace(quoteRe, '')
 					output.push(line)
 				}
@@ -44,8 +45,9 @@ class wifi {
 		if (data.search(networkPattern) === -1) {
 			data += `\n${this._entry}`
 		} else {
-			data = data.replace(networkPattern, entry)
+			data = data.replace(networkPattern, this._entry)
 		}
+		this._entry = null
 		fs.writeFile(filePath, data, 'utf8', this._writeConfigCb)
 	}
 	_writeConfigCb (err) {
@@ -69,12 +71,13 @@ class wifi {
 			return this._callback(err)
 		}
 		console.log('Wifi refreshed')
-		this._callback(null, { ssid : ssid, pwd : pwd.length })
+		//this._callback(null, { ssid : ssid, pwd : pwd.length })
 		this._callback = () => {}
 	}
 	setNetwork (ssid, pwd, callback) {
 		this._entry = `network={\n\tssid="${ssid}"\n\tpsk="${pwd}"\n}\n`
 		this._callback = callback
+		this._ssid = ssid
 		fs.readFile(filePath, 'utf8', this._readConfigCb)
 	}
 	getNetwork (callback) {