diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp b/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
index 2bfa3b1326..8f979aa75f 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
@@ -2393,6 +2393,7 @@ void generate_prototype_implementation(IDL::Interface const& interface)
 #include <LibWeb/HTML/Origin.h>
 #include <LibWeb/HTML/Scripting/Environments.h>
 #include <LibWeb/HTML/Window.h>
+#include <LibWeb/HTML/WindowProxy.h>
 #include <LibWeb/WebIDL/OverloadResolution.h>
 
 #if __has_include(<LibWeb/Bindings/@prototype_base_class@.h>)
@@ -2597,6 +2598,9 @@ static JS::ThrowCompletionOr<@fully_qualified_name@*> impl_from(JS::VM& vm)
     if (is<HTML::Window>(this_object)) {
         return static_cast<HTML::Window*>(this_object);
     }
+    if (is<HTML::WindowProxy>(this_object)) {
+        return static_cast<HTML::WindowProxy*>(this_object)->window().ptr();
+    }
 )~~~");
         }