diff --git a/Userland/Libraries/LibWeb/HTML/Window.cpp b/Userland/Libraries/LibWeb/HTML/Window.cpp
index 695eceb8c8..654e7af867 100644
--- a/Userland/Libraries/LibWeb/HTML/Window.cpp
+++ b/Userland/Libraries/LibWeb/HTML/Window.cpp
@@ -1092,7 +1092,6 @@ WebIDL::ExceptionOr<void> Window::initialize_web_interfaces(Badge<WindowEnvironm
 
     // FIXME: These should be native accessors, not properties
     define_native_accessor(realm, "top", top_getter, nullptr, JS::Attribute::Enumerable);
-    define_native_accessor(realm, "window", window_getter, {}, JS::Attribute::Enumerable);
     define_native_accessor(realm, "frames", frames_getter, {}, JS::Attribute::Enumerable);
     define_native_accessor(realm, "self", self_getter, {}, JS::Attribute::Enumerable);
     define_native_accessor(realm, "parent", parent_getter, {}, JS::Attribute::Enumerable);
@@ -1204,6 +1203,13 @@ static JS::ThrowCompletionOr<HTML::Window*> impl_from(JS::VM& vm)
     return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "Window");
 }
 
+// https://html.spec.whatwg.org/multipage/window-object.html#dom-window
+JS::NonnullGCPtr<WindowProxy> Window::window() const
+{
+    // The window, frames, and self getter steps are to return this's relevant realm.[[GlobalEnv]].[[GlobalThisValue]].
+    return verify_cast<WindowProxy>(relevant_realm(*this).global_environment().global_this_value());
+}
+
 // https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator
 JS::NonnullGCPtr<Navigator> Window::navigator() const
 {
@@ -1532,14 +1538,6 @@ JS_DEFINE_NATIVE_FUNCTION(Window::self_getter)
     return &relevant_realm(*impl).global_environment().global_this_value();
 }
 
-// https://html.spec.whatwg.org/multipage/window-object.html#dom-window
-JS_DEFINE_NATIVE_FUNCTION(Window::window_getter)
-{
-    auto* impl = TRY(impl_from(vm));
-    // The window, frames, and self getter steps are to return this's relevant realm.[[GlobalEnv]].[[GlobalThisValue]].
-    return &relevant_realm(*impl).global_environment().global_this_value();
-}
-
 // https://html.spec.whatwg.org/multipage/window-object.html#dom-frames
 JS_DEFINE_NATIVE_FUNCTION(Window::frames_getter)
 {
diff --git a/Userland/Libraries/LibWeb/HTML/Window.h b/Userland/Libraries/LibWeb/HTML/Window.h
index 78fafdcaa4..4aee11c1af 100644
--- a/Userland/Libraries/LibWeb/HTML/Window.h
+++ b/Userland/Libraries/LibWeb/HTML/Window.h
@@ -140,6 +140,8 @@ public:
     Vector<JS::NonnullGCPtr<MimeType>> pdf_viewer_mime_type_objects();
 
     // JS API functions
+    JS::NonnullGCPtr<WindowProxy> window() const;
+
     JS::NonnullGCPtr<Navigator> navigator() const;
 
     void alert(String const& message = {});
@@ -240,7 +242,6 @@ private:
     JS_DECLARE_NATIVE_FUNCTION(inner_width_getter);
     JS_DECLARE_NATIVE_FUNCTION(inner_height_getter);
 
-    JS_DECLARE_NATIVE_FUNCTION(window_getter);
     JS_DECLARE_NATIVE_FUNCTION(frames_getter);
     JS_DECLARE_NATIVE_FUNCTION(self_getter);
 
diff --git a/Userland/Libraries/LibWeb/HTML/Window.idl b/Userland/Libraries/LibWeb/HTML/Window.idl
index c8cade2f95..cbcb3d5655 100644
--- a/Userland/Libraries/LibWeb/HTML/Window.idl
+++ b/Userland/Libraries/LibWeb/HTML/Window.idl
@@ -5,6 +5,9 @@
 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#window
 [Global=Window, Exposed=Window, LegacyUnenumerableNamedProperties, UseNewAKString]
 interface Window : EventTarget {
+    // the current browsing context
+    [LegacyUnforgeable] readonly attribute WindowProxy window;
+
     // the user agent
     readonly attribute Navigator navigator;
     [ImplementedAs=navigator] readonly attribute Navigator clientInformation; // legacy alias of .navigator