diff --git a/Libraries/LibWeb/Streams/AbstractOperations.h b/Libraries/LibWeb/Streams/AbstractOperations.h
index 7dff547a67..11d143558e 100644
--- a/Libraries/LibWeb/Streams/AbstractOperations.h
+++ b/Libraries/LibWeb/Streams/AbstractOperations.h
@@ -11,6 +11,7 @@
 
 #include <LibGC/Ptr.h>
 #include <LibWeb/Forward.h>
+#include <LibWeb/Streams/Algorithms.h>
 #include <LibWeb/Streams/ReadableStream.h>
 #include <LibWeb/WebIDL/CallbackType.h>
 #include <LibWeb/WebIDL/ExceptionOr.h>
@@ -19,16 +20,6 @@
 
 namespace Web::Streams {
 
-using SizeAlgorithm = GC::Function<JS::Completion(JS::Value)>;
-using PullAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>()>;
-using CancelAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>(JS::Value)>;
-using StartAlgorithm = GC::Function<WebIDL::ExceptionOr<JS::Value>()>;
-using AbortAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>(JS::Value)>;
-using CloseAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>()>;
-using WriteAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>(JS::Value)>;
-using FlushAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>()>;
-using TransformAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>(JS::Value)>;
-
 WebIDL::ExceptionOr<GC::Ref<ReadableStreamDefaultReader>> acquire_readable_stream_default_reader(ReadableStream&);
 WebIDL::ExceptionOr<GC::Ref<ReadableStreamBYOBReader>> acquire_readable_stream_byob_reader(ReadableStream&);
 bool is_readable_stream_locked(ReadableStream const&);
diff --git a/Libraries/LibWeb/Streams/Algorithms.h b/Libraries/LibWeb/Streams/Algorithms.h
new file mode 100644
index 0000000000..9a486a6a7f
--- /dev/null
+++ b/Libraries/LibWeb/Streams/Algorithms.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibGC/Function.h>
+#include <LibGC/Ptr.h>
+#include <LibWeb/WebIDL/ExceptionOr.h>
+#include <LibWeb/WebIDL/Promise.h>
+
+namespace Web::Streams {
+
+using SizeAlgorithm = GC::Function<JS::Completion(JS::Value)>;
+using PullAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>()>;
+using CancelAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>(JS::Value)>;
+using StartAlgorithm = GC::Function<WebIDL::ExceptionOr<JS::Value>()>;
+using AbortAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>(JS::Value)>;
+using CloseAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>()>;
+using WriteAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>(JS::Value)>;
+using FlushAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>()>;
+using TransformAlgorithm = GC::Function<GC::Ref<WebIDL::Promise>(JS::Value)>;
+
+}