diff --git a/bundles/org.openhab.binding.bluetooth/src/main/java/org/openhab/binding/bluetooth/BeaconBluetoothHandler.java b/bundles/org.openhab.binding.bluetooth/src/main/java/org/openhab/binding/bluetooth/BeaconBluetoothHandler.java
index eed25e17e6883..523fc2b60e437 100644
--- a/bundles/org.openhab.binding.bluetooth/src/main/java/org/openhab/binding/bluetooth/BeaconBluetoothHandler.java
+++ b/bundles/org.openhab.binding.bluetooth/src/main/java/org/openhab/binding/bluetooth/BeaconBluetoothHandler.java
@@ -58,6 +58,10 @@
 @NonNullByDefault
 public class BeaconBluetoothHandler extends BaseThingHandler implements BluetoothDeviceListener {
 
+    /**
+     * https://www.bluetooth.com/specifications/assigned-numbers/
+     * GATT Service: 0x181A: Environmental Sensing
+     */
     public static final String SERVICE_UUID_ENVIRONMENTAL_SENSING = "0000181a-0000-1000-8000-00805f9b34fb";
 
     @NonNullByDefault({} /* non-null if initialized */)