diff --git a/core/java/android/bluetooth/IBluetoothManagerCallback.aidl b/core/java/android/bluetooth/IBluetoothManagerCallback.aidl
index 1385dafca2fb7..8104d21994828 100644
--- a/core/java/android/bluetooth/IBluetoothManagerCallback.aidl
+++ b/core/java/android/bluetooth/IBluetoothManagerCallback.aidl
@@ -23,7 +23,7 @@ import android.bluetooth.IBluetooth;
  *
  * {@hide}
  */
-interface IBluetoothManagerCallback {
+oneway interface IBluetoothManagerCallback {
     void onBluetoothServiceUp(in IBluetooth bluetoothService);
     void onBluetoothServiceDown();
     void onBrEdrDown();