diff --git a/include/gui/SurfaceTextureClient.h b/include/gui/SurfaceTextureClient.h
index dd1d490..ff2251d 100644
--- a/include/gui/SurfaceTextureClient.h
+++ b/include/gui/SurfaceTextureClient.h
@@ -83,6 +83,10 @@
     // interactions with the server using this interface.
     sp<ISurfaceTexture> mSurfaceTexture;
 
+    // mAllocator is the binder object that is referenced to prevent the
+    // dequeued buffers from being freed prematurely.
+    sp<IBinder> mAllocator;
+
     // mSlots stores the buffers that have been allocated for each buffer slot.
     // It is initialized to null pointers, and gets filled in with the result of
     // ISurfaceTexture::requestBuffer when the client dequeues a buffer from a