diff --git a/sonoff/sonoff.ino b/sonoff/sonoff.ino
index 09e029a15..829879c31 100755
--- a/sonoff/sonoff.ino
+++ b/sonoff/sonoff.ino
@@ -729,7 +729,6 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
               case 6:            // mqtt_button_retain (CMND_BUTTONRETAIN)
               case 7:            // mqtt_switch_retain (CMND_SWITCHRETAIN)
               case 9:            // mqtt_sensor_retain (CMND_SENSORRETAIN)
-              case 22:           // mqtt_serial (SerialSend and SerialLog)
               case 23:           // mqtt_serial_raw (SerialSend)
               case 25:           // knx_enabled (Web config)
               case 27:           // knx_enable_enhancement (Web config)
diff --git a/sonoff/xdrv_16_tuyadimmer.ino b/sonoff/xdrv_16_tuyadimmer.ino
index a1356784d..d31d22609 100644
--- a/sonoff/xdrv_16_tuyadimmer.ino
+++ b/sonoff/xdrv_16_tuyadimmer.ino
@@ -207,7 +207,7 @@ void TuyaPacketProcess()
         }
 
         tuya_new_dim = round(tuya_buffer[13] * (100. / 255.));
-        if((power || bitRead(Settings.flag.data, 20)) && (tuya_new_dim > 0) && (abs(tuya_new_dim - Settings.light_dimmer) > 1)) {
+        if((power || bitRead(Settings.flag.data, 22)) && (tuya_new_dim > 0) && (abs(tuya_new_dim - Settings.light_dimmer) > 1)) {
 
           snprintf_P(scmnd, sizeof(scmnd), PSTR(D_CMND_DIMMER " %d"), tuya_new_dim );