diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp b/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
index 3dca3459c9..461a87ecac 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
@@ -2061,7 +2061,7 @@ static DeprecatedString generate_constructor_for_idl_type(Type const& type)
     case Type::Kind::Parameterized: {
         auto const& parameterized_type = type.as_parameterized();
         StringBuilder builder;
-        builder.appendff("make_ref_counted<IDL::ParameterizedTypeType>(\"{}\", {}, Vector<NonnullRefPtr<IDL::Type const>> {{", type.name(), type.is_nullable());
+        builder.appendff("make_ref_counted<IDL::ParameterizedType>(\"{}\", {}, Vector<NonnullRefPtr<IDL::Type const>> {{", type.name(), type.is_nullable());
         append_type_list(builder, parameterized_type.parameters());
         builder.append("})"sv);
         return builder.to_deprecated_string();