diff --git a/media/libaudiohal/EffectBufferHalHidl.h b/media/libaudiohal/EffectBufferHalHidl.h
index 66a81c2..d7a43ae 100644
--- a/media/libaudiohal/EffectBufferHalHidl.h
+++ b/media/libaudiohal/EffectBufferHalHidl.h
@@ -35,6 +35,8 @@
     virtual audio_buffer_t* audioBuffer();
     virtual void* externalData() const;
 
+    virtual size_t getSize() const override { return mBufferSize; }
+
     virtual void setExternalData(void* external);
     virtual void setFrameCount(size_t frameCount);
     virtual bool checkFrameCountChange();