diff --git a/quic/core/quic_crypto_stream.h b/quic/core/quic_crypto_stream.h
index e60277b..e2edf12 100644
--- a/quic/core/quic_crypto_stream.h
+++ b/quic/core/quic_crypto_stream.h
@@ -6,6 +6,7 @@
 #define QUICHE_QUIC_CORE_QUIC_CRYPTO_STREAM_H_
 
 #include <cstddef>
+#include <string>
 
 #include "base/macros.h"
 #include "net/third_party/quiche/src/quic/core/crypto/crypto_framer.h"
@@ -14,7 +15,6 @@
 #include "net/third_party/quiche/src/quic/core/quic_packets.h"
 #include "net/third_party/quiche/src/quic/core/quic_stream.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_export.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 {