diff --git a/src/@ionic-native/plugins/ble/index.ts b/src/@ionic-native/plugins/ble/index.ts
index 5405c63df..aa359a6d4 100644
--- a/src/@ionic-native/plugins/ble/index.ts
+++ b/src/@ionic-native/plugins/ble/index.ts
@@ -455,9 +455,12 @@ export class BLE extends IonicNativePlugin {
    * @param {string} serviceUUID  UUID of the BLE service
    * @param {string} characteristicUUID  UUID of the BLE characteristic
    * @return {Observable<any>} Returns an Observable that notifies of characteristic changes.
+   * The observer emit an array with data at index 0 and sequence order at index 1.
+   * The sequence order is always undefined on iOS. On android it leave the client to check the sequence order and reorder if needed
    */
   @Cordova({
     observable: true,
+    destruct: true,
     clearFunction: 'stopNotification',
     clearWithArgs: true,
   })