diff --git a/ST-B-L072Z-LRWAN1/longfi-us915/longfi-us915.ino b/ST-B-L072Z-LRWAN1/longfi-us915/longfi-us915.ino
index 521ee94..75627d2 100644
--- a/ST-B-L072Z-LRWAN1/longfi-us915/longfi-us915.ino
+++ b/ST-B-L072Z-LRWAN1/longfi-us915/longfi-us915.ino
@@ -45,6 +45,8 @@ void setup( void )
     LoRaWAN.begin(US915);
     // Helium SubBand
     LoRaWAN.setSubBand(7);
+    // Disable Adaptive Data Rate
+    LoRaWAN.setADR(false);
     // Set Data Rate 1 - Max Payload 53 Bytes
     LoRaWAN.setDataRate(1);
     // Device IDs and Key