diff --git a/include/gui/IGraphicBufferProducer.h b/include/gui/IGraphicBufferProducer.h
index 304a0c0..258cd2f 100644
--- a/include/gui/IGraphicBufferProducer.h
+++ b/include/gui/IGraphicBufferProducer.h
@@ -385,6 +385,7 @@
         uint32_t numPendingBuffers{0};
         uint64_t nextFrameNumber{0};
         FrameEventHistoryDelta frameTimestamps;
+        bool bufferReplaced{false};
     };
 
     virtual status_t queueBuffer(int slot, const QueueBufferInput& input,