diff --git a/sonoff/my_user_config.h b/sonoff/my_user_config.h
index 014144526..7390027f2 100644
--- a/sonoff/my_user_config.h
+++ b/sonoff/my_user_config.h
@@ -284,7 +284,7 @@
   #define USE_EMULATION_WEMO                     // Enable Belkin WeMo emulation for Alexa (+6k code, +2k mem common)
 
 // -- mDNS ----------------------------------------
-//#define USE_DISCOVERY                            // Enable mDNS for the following services (+8k code or +23.5k code with core 2_5_x, +0.3k mem)
+#define USE_DISCOVERY                            // Enable mDNS for the following services (+8k code or +23.5k code with core 2_5_x, +0.3k mem)
   #define WEBSERVER_ADVERTISE                    // Provide access to webserver by name <Hostname>.local/
   #define MQTT_HOST_DISCOVERY                    // Find MQTT host server (overrides MQTT_HOST if found)