diff --git a/third_party/blink/renderer/core/html/trust_token_attribute_parsing.h b/third_party/blink/renderer/core/html/trust_token_attribute_parsing.h
index f5a7ab038..ef19cfaf6 100644
--- a/third_party/blink/renderer/core/html/trust_token_attribute_parsing.h
+++ b/third_party/blink/renderer/core/html/trust_token_attribute_parsing.h
@@ -5,6 +5,8 @@
 #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_TRUST_TOKEN_ATTRIBUTE_PARSING_H_
 #define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_TRUST_TOKEN_ATTRIBUTE_PARSING_H_
 
+#include <memory>
+
 #include "base/optional.h"
 #include "services/network/public/mojom/trust_tokens.mojom-blink-forward.h"
 #include "third_party/blink/renderer/core/core_export.h"