diff --git a/quic/core/quic_stream_send_buffer.h b/quic/core/quic_stream_send_buffer.h
index a1f7ac7..51a10e9 100644
--- a/quic/core/quic_stream_send_buffer.h
+++ b/quic/core/quic_stream_send_buffer.h
@@ -62,7 +62,7 @@
  public:
   explicit QuicStreamSendBuffer(QuicBufferAllocator* allocator);
   QuicStreamSendBuffer(const QuicStreamSendBuffer& other) = delete;
-  QuicStreamSendBuffer(QuicStreamSendBuffer&& other) = default;
+  QuicStreamSendBuffer(QuicStreamSendBuffer&& other) = delete;
   ~QuicStreamSendBuffer();
 
   // Save |data_length| of data starts at |iov_offset| in |iov| to send buffer.