diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index 0a89fbb..5379809 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -193,7 +193,7 @@
             mAudioTrackThread->requestExitAndWait();
             mAudioTrackThread.clear();
         }
-        mAudioTrack->asBinder()->unlinkToDeath(mDeathNotifier, this);
+        IInterface::asBinder(mAudioTrack)->unlinkToDeath(mDeathNotifier, this);
         mAudioTrack.clear();
         mCblkMemory.clear();
         mSharedBuffer.clear();
@@ -1121,7 +1121,7 @@
     }
     // invariant that mAudioTrack != 0 is true only after set() returns successfully
     if (mAudioTrack != 0) {
-        mAudioTrack->asBinder()->unlinkToDeath(mDeathNotifier, this);
+        IInterface::asBinder(mAudioTrack)->unlinkToDeath(mDeathNotifier, this);
         mDeathNotifier.clear();
     }
     mAudioTrack = track;
@@ -1224,7 +1224,7 @@
     mProxy->setMinimum(mNotificationFramesAct);
 
     mDeathNotifier = new DeathNotifier(this);
-    mAudioTrack->asBinder()->linkToDeath(mDeathNotifier, this);
+    IInterface::asBinder(mAudioTrack)->linkToDeath(mDeathNotifier, this);
 
     return NO_ERROR;
     }