diff --git a/quic/core/quic_stream_sequencer.cc b/quic/core/quic_stream_sequencer.cc
index 47c7c9f..9832fc9 100644
--- a/quic/core/quic_stream_sequencer.cc
+++ b/quic/core/quic_stream_sequencer.cc
@@ -6,6 +6,7 @@
 
 #include <algorithm>
 #include <limits>
+#include <string>
 #include <utility>
 
 #include "net/third_party/quiche/src/quic/core/quic_packets.h"
@@ -17,7 +18,6 @@
 #include "net/third_party/quiche/src/quic/platform/api/quic_flag_utils.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_logging.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_str_cat.h"
-#include "net/third_party/quiche/src/quic/platform/api/quic_string.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_string_piece.h"
 
 namespace quic {