diff --git a/quic/core/http/spdy_utils.cc b/quic/core/http/spdy_utils.cc
index c3f312b..2d94fd4 100644
--- a/quic/core/http/spdy_utils.cc
+++ b/quic/core/http/spdy_utils.cc
@@ -5,6 +5,7 @@
 #include "net/third_party/quiche/src/quic/core/http/spdy_utils.h"
 
 #include <memory>
+#include <string>
 #include <vector>
 
 #include "url/gurl.h"
@@ -12,7 +13,6 @@
 #include "net/third_party/quiche/src/quic/platform/api/quic_flags.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_logging.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_map_util.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"
 #include "net/third_party/quiche/src/quic/platform/api/quic_text_utils.h"
 #include "net/third_party/quiche/src/spdy/core/spdy_frame_builder.h"