diff --git a/WifiControlSensor/WifiControlSensor.ino b/WifiControlSensor/WifiControlSensor.ino
index 8ab87c0..4fb4df8 100644
--- a/WifiControlSensor/WifiControlSensor.ino
+++ b/WifiControlSensor/WifiControlSensor.ino
@@ -110,7 +110,7 @@ void WifiSetup(int bootmode, char *confSsid, char *confPassword, char *confHost,
     SKETCH_DEBUG_PRINTLN("");
     SKETCH_DEBUG_PRINTLN("WiFi connected");
 
-#ifndef CONFIG_ENABLE_POWER_SAVE
+#ifndef CONFIG_DISABLE_MDNS
     if (!MDNS.begin(confHost)) {
       SKETCH_DEBUG_PRINTLN("Error setting up MDNS responder!");
       while (1) {
diff --git a/WifiControlSensor/config_device.h b/WifiControlSensor/config_device.h
index bd31558..30ae7c7 100644
--- a/WifiControlSensor/config_device.h
+++ b/WifiControlSensor/config_device.h
@@ -17,9 +17,10 @@
 
 // Enable light sleep to save some power (http://bbs.espressif.com/viewtopic.php?f=6&t=133&p=485&hilit=sleep+modem#p485)
 // Switch off internal LED
-// Disable mDNS
 //#define CONFIG_ENABLE_POWER_SAVE
 
+// Disable mDNS can also save power
+//#define CONFIG_DISABLE_MDNS
 
 //Web controlled GPIO
 #define CONFIG_WEB_CONTROLLED_GPIO 2