diff --git a/ZgatewayBT.ino b/ZgatewayBT.ino
index b224c73..522dcfc 100644
--- a/ZgatewayBT.ino
+++ b/ZgatewayBT.ino
@@ -52,7 +52,7 @@ void setupBT() {
   delay(100);
 }
 
-#ifndef ZgatewayBT_stable // published for test only, if you want to test mi flora integration uncomment ZgatewayBT_stable in config_BT
+#ifdef ZgatewayBT_v6xx
 #define QUESTION_MSG "AT+DISA?"
 boolean BTtoMQTT() {
 
@@ -164,7 +164,7 @@ boolean process_miflora_data(char * rest_data, char * mac_adress){
 
 #endif
 
-#ifdef ZgatewayBT_stable
+#ifndef ZgatewayBT_v6xx
 #define QUESTION_MSG "AT+DISI?"
 boolean BTtoMQTT() {
   while (softserial.available() > 0) {
diff --git a/config_BT.h b/config_BT.h
index b192686..7e202ca 100644
--- a/config_BT.h
+++ b/config_BT.h
@@ -28,7 +28,7 @@
 #define TimeBtw_Read 10000 //define the time between 2 scans
 #define HM-10 
 //#define HM-11 // uncomment this line if you use HM-11 and comment the line above
-#define ZgatewayBT_stable true //comment this line to test mi flora integration
+#define ZgatewayBT_v6xx // comment if you don't have a firmware version of HM10/11 >= v601
 #define delimiter "4f4b2b444953413a"
 #define delimiter_length 16