diff --git a/packages/SettingsLib/src/com/android/settingslib/media/MediaManager.java b/packages/SettingsLib/src/com/android/settingslib/media/MediaManager.java
index e8cbab8197b2a..a040e28169e88 100644
--- a/packages/SettingsLib/src/com/android/settingslib/media/MediaManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/media/MediaManager.java
@@ -32,7 +32,7 @@ public abstract class MediaManager {
     private static final String TAG = "MediaManager";
 
     protected final Collection<MediaDeviceCallback> mCallbacks = new CopyOnWriteArrayList<>();
-    protected final List<MediaDevice> mMediaDevices = new ArrayList<>();
+    protected final List<MediaDevice> mMediaDevices = new CopyOnWriteArrayList<>();
 
     protected Context mContext;
     protected Notification mNotification;