diff --git a/quic/core/quic_stream.h b/quic/core/quic_stream.h
index df1f7f8..80ee4e4 100644
--- a/quic/core/quic_stream.h
+++ b/quic/core/quic_stream.h
@@ -76,6 +76,8 @@
 
   const QuicStreamSequencer* sequencer() const { return &sequencer_; }
 
+  void MarkConsumed(size_t num_bytes);
+
  private:
   friend class QuicStream;