diff --git a/quic/core/frames/quic_stream_frame.cc b/quic/core/frames/quic_stream_frame.cc
index b9413c7..c7626d3 100644
--- a/quic/core/frames/quic_stream_frame.cc
+++ b/quic/core/frames/quic_stream_frame.cc
@@ -43,4 +43,10 @@
   return os;
 }
 
+bool QuicStreamFrame::operator==(const QuicStreamFrame& rhs) const {
+  return fin == rhs.fin && data_length == rhs.data_length &&
+         stream_id == rhs.stream_id && data_buffer == rhs.data_buffer &&
+         offset == rhs.offset;
+}
+
 }  // namespace quic
diff --git a/quic/core/frames/quic_stream_frame.h b/quic/core/frames/quic_stream_frame.h
index 6cd510d..5e7439d 100644
--- a/quic/core/frames/quic_stream_frame.h
+++ b/quic/core/frames/quic_stream_frame.h
@@ -31,6 +31,8 @@
   friend QUIC_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,
                                                       const QuicStreamFrame& s);
 
+  bool operator==(const QuicStreamFrame& rhs) const;
+
   bool fin;
   QuicPacketLength data_length;
   QuicStreamId stream_id;