diff --git a/quic/core/quic_interval_set.h b/quic/core/quic_interval_set.h
index fe3165b..4722528 100644
--- a/quic/core/quic_interval_set.h
+++ b/quic/core/quic_interval_set.h
@@ -57,9 +57,10 @@
 #include <utility>
 #include <vector>
 
+#include <string>
+
 #include "net/third_party/quiche/src/quic/core/quic_interval.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_logging.h"
-#include "net/third_party/quiche/src/quic/platform/api/quic_string.h"
 
 namespace quic {