diff --git a/cppwinrt/code_writers.h b/cppwinrt/code_writers.h
index 968724dfa..22bdb16e1 100644
--- a/cppwinrt/code_writers.h
+++ b/cppwinrt/code_writers.h
@@ -1860,7 +1860,7 @@ struct __declspec(empty_bases) produce_dispatch_to_overridable<T, D, %>
 
     static void write_interface_override_method(writer& w, MethodDef const& method, std::string_view const& interface_name)
     {
-        auto format = R"(    template <typename D> auto %T<D>::%(%) const
+        auto format = R"(    template <typename D> WINRT_IMPL_AUTO(%) %T<D>::%(%) const
     {
         return shim().template try_as<%>().%(%);
     }
@@ -1870,6 +1870,7 @@ struct __declspec(empty_bases) produce_dispatch_to_overridable<T, D, %>
         auto method_name = get_name(method);
 
         w.write(format,
+            signature.return_signature(),
             interface_name,
             method_name,
             bind<write_consume_params>(signature),