diff --git a/MQTT-Overview.asciidoc b/MQTT-Overview.asciidoc
index cc5d90a5..8e6f8127 100644
--- a/MQTT-Overview.asciidoc
+++ b/MQTT-Overview.asciidoc
@@ -42,7 +42,7 @@ Once enabled MQTT can be configured at Configuration -> Configure MQTT.
 |Field|Size|Default(user_config.h)|Notes
 |Host name |32|MQTT_HOST=domus1|URL or ip address. Note that without a special firmware build SSL is NOT supported. 
 |Port|uint|MQTT_PORT=1883|0-65535
-|Client Id|32|MQTT_CLIENT_ID=DVES_%06X|Unique ID of this device, should be unique for every device; logged by the MQTT server
+|Client Id|32|MQTT_CLIENT_ID=DVES_%06X|FallBack topic of this device, will be unique for every device; logged by the MQTT server
 |Username|32|MQTT_USER=DVES_USER|Username for MQTT server authentication
 |Password|32|MQTT_PASS=DVES_PASS|Password for MQTT server authentication
 |Topic|32|MQTT_TOPIC=sonoff|User friendly topic name; ususally describes the location or use of this device; used in the MQTT commands and responses; should be unique
@@ -97,9 +97,9 @@ You'll need an MQTT server somewhere to communicate with your Sonoff. Some peopl
 Other people think the MQTT server should reside inside your private LAN. You could use a Raspberry/Orange Pi, or just about any Linux machine as the server/broker; you might even squeeze it into your router if you're using OpenWRT.
 
 #### Topics
-The middle word of the 'topic' phrase indicates the name of the device. You can communicate with a sonoff using its topic name, its group name or its unique ID.
+The middle word of the 'topic' phrase indicates the name of the device. You can communicate with a sonoff using its topic name, its group name or its FallBack topic name (like DVES_123456).
 
-At the time the sonoff connects with the MQTT server, the sonoff subscribes to +++"cmnd/my-topic/#", "cmnd/group-topic/#" and "cmnd/DVES_123456/#",+++ and listens on all those names. You can find the group name using "status 0" and the unique ID using "status 6" or both on the MQTT config web page.
+At the time the sonoff connects with the MQTT server, the sonoff subscribes to +++"cmnd/my-topic/#", "cmnd/group-topic/#" and "cmnd/fallback-topic/#",+++ and listens on all those names. You can find the group name using "status 0" and the FallBack topic using "status 6" or both on the MQTT config web page.
 
 
 #### Creating your own MQTT server/broker