diff --git a/sonoff/_releasenotes.ino b/sonoff/_releasenotes.ino
index a6df3402e..0ad53c457 100644
--- a/sonoff/_releasenotes.ino
+++ b/sonoff/_releasenotes.ino
@@ -1,18 +1,20 @@
 /* 5.14.0a
  * Add feature information to Status 4
  * Add tools folder with python script decode-status.py for decoding some status fields like SetOption and Features
- * Add Eastron SDM630 energy meter (#2735)
- * Add KNX communication enhancement (#2742)
- * Add KNX energy data (#2750)
- * Add python script fw-server.py in tools folder to create a simple OTA server (#2759)
+ * Add Eastron SDM630 energy meter by Gennaro Tortone (#2735)
+ * Add KNX communication enhancement by Adrian Scillato (#2742)
+ * Add KNX energy data by Adrian Scillato (#2750)
+ * Add python script fw-server.py in tools folder to create a simple OTA server by Gennaro Tortone (#2759)
  * Add rules %mem1% to %mem5% variable names storing data in flash (#2780)
  * Add rules test on %varx% or %memx% (#2780)
+ * Add optional token %id% substituting the unique MAC address for topic names by Michael Graf (#2794)
  * Fix display selection of un-available GPIO options in Module Configuration webpage (#2718)
  * Fix timer re-trigger within one minute after restart (#2744)
- * Fix IRSend not accepting data value of 0 (#2751)
- * Fix vars on rules (#2769)
- * Fix bug in KNX menu (#2770)
+ * Fix IRSend not accepting data value of 0 by David Conran (#2751)
+ * Fix vars on rules by Adrian Scillato (#2769)
+ * Fix bug in KNX menu by Adrian Scillato (#2770)
  * Fix anomalies in rules (#2778)
+ * Fix HUE bridge V1 software version by Heiko Krupp (#2788)
  *
  * 5.14.0 20180515
  * Update language files
@@ -27,13 +29,13 @@
  * Fix KNX config error (#2628)
  * Fix sensor MHZ-19 vanishing data over time (#2659)
  * Fix KNX reconnection issue (#2679)
- * Fix DST and STD time for Southern Hemisphere (#2684, #2714)
+ * Fix DST and STD time for Southern Hemisphere by Adrian Scillato (#2684, #2714)
  * Add Portuguese in Brazil language file
  * Add SetOption26 to enforce use of indexes even when only one relay is present (#1055)
  * Add support for sensor SI1145 UV Index / IR / Visible light (#2496)
  * Add rule state test for On/Off in addition to 0/1 (#2613)
  * Add hardware serial option to MHZ-19 sensor (#2659)
- * Add Eastron SDM120 energy meter (#2694)
+ * Add Eastron SDM120 energy meter by Gennaro Tortone (#2694)
  * Add user entry DST/STD using commands TimeStd and TimeDst (See wiki for parameter syntax) (#2721)
  *
  * 5.13.1 20180501
diff --git a/sonoff/sonoff.h b/sonoff/sonoff.h
index ca6ed256c..369fb10cb 100644
--- a/sonoff/sonoff.h
+++ b/sonoff/sonoff.h
@@ -55,6 +55,7 @@ typedef unsigned long power_t;              // Power (Relay) type
 
 #define MQTT_TOKEN_PREFIX      "%prefix%"   // To be substituted by mqtt_prefix[x]
 #define MQTT_TOKEN_TOPIC       "%topic%"    // To be substituted by mqtt_topic, mqtt_grptopic, mqtt_buttontopic, mqtt_switchtopic
+#define MQTT_TOKEN_ID          "%id%"       // To be substituted by mqtt_topic, mqtt_grptopic, mqtt_buttontopic, mqtt_switchtopic
 
 #define WIFI_HOSTNAME          "%s-%04d"    // Expands to <MQTT_TOPIC>-<last 4 decimal chars of MAC address>
 
diff --git a/sonoff/sonoff.ino b/sonoff/sonoff.ino
index a12a710b3..e88c03e7e 100644
--- a/sonoff/sonoff.ino
+++ b/sonoff/sonoff.ino
@@ -269,6 +269,9 @@ void GetTopic_P(char *stopic, byte prefix, char *topic, const char* subtopic)
     }
     fulltopic.replace(F(MQTT_TOKEN_PREFIX), Settings.mqtt_prefix[prefix]);
     fulltopic.replace(F(MQTT_TOKEN_TOPIC), topic);
+    String token_id = WiFi.macAddress();
+    token_id.replace(":", "");
+    fulltopic.replace(F(MQTT_TOKEN_ID), token_id);
   }
   fulltopic.replace(F("#"), "");
   fulltopic.replace(F("//"), "/");