diff --git a/Libraries/LibWeb/Bindings/Serializable.h b/Libraries/LibWeb/Bindings/Serializable.h
index 67d76703a96..d31b08bd973 100644
--- a/Libraries/LibWeb/Bindings/Serializable.h
+++ b/Libraries/LibWeb/Bindings/Serializable.h
@@ -6,8 +6,8 @@
 
 #pragma once
 
-#include <LibJS/Runtime/Realm.h>
-#include <LibWeb/HTML/StructuredSerialize.h>
+#include <LibWeb/Forward.h>
+#include <LibWeb/HTML/StructuredSerializeTypes.h>
 
 namespace Web::Bindings {
 
diff --git a/Libraries/LibWeb/Crypto/CryptoKey.cpp b/Libraries/LibWeb/Crypto/CryptoKey.cpp
index 2e636f5ecc9..975a2647b8d 100644
--- a/Libraries/LibWeb/Crypto/CryptoKey.cpp
+++ b/Libraries/LibWeb/Crypto/CryptoKey.cpp
@@ -10,6 +10,7 @@
 #include <LibWeb/Bindings/CryptoKeyPrototype.h>
 #include <LibWeb/Bindings/ExceptionOrUtils.h>
 #include <LibWeb/Crypto/CryptoKey.h>
+#include <LibWeb/HTML/StructuredSerialize.h>
 
 namespace Web::Crypto {
 
diff --git a/Libraries/LibWeb/FileAPI/File.cpp b/Libraries/LibWeb/FileAPI/File.cpp
index db7e93738c2..a93094fc82d 100644
--- a/Libraries/LibWeb/FileAPI/File.cpp
+++ b/Libraries/LibWeb/FileAPI/File.cpp
@@ -9,6 +9,7 @@
 #include <LibWeb/Bindings/FilePrototype.h>
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/FileAPI/File.h>
+#include <LibWeb/HTML/StructuredSerialize.h>
 #include <LibWeb/Infra/Strings.h>
 #include <LibWeb/MimeSniff/MimeType.h>
 
diff --git a/Libraries/LibWeb/FileAPI/FileList.cpp b/Libraries/LibWeb/FileAPI/FileList.cpp
index 9251de64c98..24bd5652bff 100644
--- a/Libraries/LibWeb/FileAPI/FileList.cpp
+++ b/Libraries/LibWeb/FileAPI/FileList.cpp
@@ -9,6 +9,7 @@
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/Bindings/PlatformObject.h>
 #include <LibWeb/FileAPI/FileList.h>
+#include <LibWeb/HTML/StructuredSerialize.h>
 
 namespace Web::FileAPI {
 
diff --git a/Libraries/LibWeb/Geometry/DOMQuad.cpp b/Libraries/LibWeb/Geometry/DOMQuad.cpp
index 974afe6634a..e77e0b4bb5a 100644
--- a/Libraries/LibWeb/Geometry/DOMQuad.cpp
+++ b/Libraries/LibWeb/Geometry/DOMQuad.cpp
@@ -7,6 +7,7 @@
 #include <LibWeb/Bindings/DOMQuadPrototype.h>
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/Geometry/DOMQuad.h>
+#include <LibWeb/HTML/StructuredSerialize.h>
 
 namespace Web::Geometry {
 
diff --git a/Libraries/LibWeb/HTML/StructuredSerialize.h b/Libraries/LibWeb/HTML/StructuredSerialize.h
index 843d87ca5d6..0a3e195ba85 100644
--- a/Libraries/LibWeb/HTML/StructuredSerialize.h
+++ b/Libraries/LibWeb/HTML/StructuredSerialize.h
@@ -13,6 +13,8 @@
 #include <AK/Vector.h>
 #include <LibIPC/Forward.h>
 #include <LibJS/Forward.h>
+#include <LibWeb/Forward.h>
+#include <LibWeb/HTML/StructuredSerializeTypes.h>
 #include <LibWeb/WebIDL/ExceptionOr.h>
 
 // Structured serialize is an entirely different format from IPC because:
@@ -22,10 +24,6 @@
 
 namespace Web::HTML {
 
-using SerializationRecord = Vector<u32>;
-using SerializationMemory = HashMap<GC::Root<JS::Value>, u32>;
-using DeserializationMemory = GC::MarkedVector<JS::Value>;
-
 struct TransferDataHolder {
     Vector<u8> data;
     Vector<IPC::File> fds;
diff --git a/Libraries/LibWeb/HTML/StructuredSerializeTypes.h b/Libraries/LibWeb/HTML/StructuredSerializeTypes.h
new file mode 100644
index 00000000000..094152b2a93
--- /dev/null
+++ b/Libraries/LibWeb/HTML/StructuredSerializeTypes.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2024, Kenneth Myhra <kennethmyhra@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibGC/Forward.h>
+
+#pragma once
+
+namespace Web::HTML {
+
+using DeserializationMemory = GC::MarkedVector<JS::Value>;
+using SerializationRecord = Vector<u32>;
+using SerializationMemory = HashMap<GC::Root<JS::Value>, u32>;
+
+}