diff --git a/demo-cxx/demo.h b/demo-cxx/demo.h
index 885293f..fafc474 100644
--- a/demo-cxx/demo.h
+++ b/demo-cxx/demo.h
@@ -12,13 +12,12 @@
   ~ThingC();
 
   std::string appname;
-
-  const std::string &get_name() const;
 };
 
 struct SharedThing;
 
 std::unique_ptr<ThingC> make_demo(rust::Str appname);
+const std::string &get_name(const ThingC &thing);
 void do_thing(SharedThing state);
 
 } // namespace example