diff --git a/.travis.yml b/.travis.yml
index 7f50838..d64c644 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,7 +38,8 @@ install:
   - git clone https://github.com/LowPowerLab/RFM69 /usr/local/share/arduino/libraries/RFM69
   - rm /usr/local/share/arduino/libraries/RFM69/RFM69_OTA.h
   - rm /usr/local/share/arduino/libraries/RFM69/RFM69_OTA.cpp
-  - git clone https://github.com/nkolban/ESP32_BLE_Arduino/tree/f8fe9d7cdfb20caa54b70849826d1ac6e375ff78 /usr/local/share/arduino/libraries/ESP32_BLE_Arduino
+  - wget https://github.com/nkolban/ESP32_BLE_Arduino/archive/f8fe9d7cdfb20caa54b70849826d1ac6e375ff78.zip -O /tmp/ESP32_BLE_Arduino.zip
+  - unzip /tmp/ESP32_BLE_Arduino.zip -d /usr/local/share/arduino/libraries
   - wget -q https://raw.githubusercontent.com/nkolban/esp32-snippets/master/cpp_utils/BLEAdvertisedDevice.cpp -O /usr/local/share/arduino/libraries/ESP32_BLE_Arduino/src/BLEAdvertisedDevice.cpp
   - wget -q https://raw.githubusercontent.com/nkolban/esp32-snippets/master/cpp_utils/BLEAdvertisedDevice.h -O /usr/local/share/arduino/libraries/ESP32_BLE_Arduino/src/BLEAdvertisedDevice.h
   - mkdir -p /usr/local/share/arduino/hardware/espressif
diff --git a/OpenMQTTGateway.ino b/OpenMQTTGateway.ino
index bae648a..f1b22a5 100644
--- a/OpenMQTTGateway.ino
+++ b/OpenMQTTGateway.ino
@@ -212,7 +212,7 @@ void setup()
     digitalWrite(led_send, HIGH);
   #endif
 
- #ifdef MDNS_SD
+ #if defined(MDNS_SD) && defined(ESP8266)
      trc(F("Connecting to MQTT by mDNS without mqtt hostname"));
      connectMQTTmdns();
  #else
@@ -295,7 +295,7 @@ void setup_wifi() {
   trc(F("WiFi ok"));
 }
 
-#ifdef MDNS_SD
+#ifdef defined(MDNS_SD) && defined(ESP8266)
   void connectMQTTmdns(){
     if (!MDNS.begin("ESP_MQTT")) {
         trc(F("Error setting up MDNS responder!"));