diff --git a/sonoff/_changelog.ino b/sonoff/_changelog.ino
index 9ddb1b357..871d04ae4 100644
--- a/sonoff/_changelog.ino
+++ b/sonoff/_changelog.ino
@@ -7,6 +7,7 @@
  * Extend PWM resolution from 8 to 10 bits for low brightness lights
  * Allow all 5 PWM channels individually adressable with LEDs. (#5741)
  * Fixed inversion of WC/WW channels, back to RGBCW
+ * Fixed the Unescape() function and the SendSerial3 behaviour
  *
  * 6.5.0.8 20190413
  * Add Tuya Dimmer 10 second heartbeat serial packet required by some Tuya dimmer secondary MCUs
diff --git a/sonoff/support.ino b/sonoff/support.ino
index d8732fc85..95d3326ce 100644
--- a/sonoff/support.ino
+++ b/sonoff/support.ino
@@ -353,7 +353,7 @@ char* Unescape(char* buffer, uint16_t* size)
     }
   }
   *size = end_size;
-
+  *write++ = 0;   // add the end string pointer reference
 //  AddLogBuffer(LOG_LEVEL_DEBUG, (uint8_t*)buffer, *size);
 
   return buffer;