diff --git a/gtk2_ardour/luainstance.cc b/gtk2_ardour/luainstance.cc
index c8a4fe9e3b..59ebd80e85 100644
--- a/gtk2_ardour/luainstance.cc
+++ b/gtk2_ardour/luainstance.cc
@@ -575,22 +575,28 @@ LuaInstance::register_classes (lua_State* L)
 		.addFunction ("_type", &ArdourMarker::type)
 		.endClass ()
 
-#if 0
 		.beginClass <AxisView> ("AxisView")
 		.endClass ()
+
 		.deriveClass <TimeAxisView, AxisView> ("TimeAxisView")
 		.endClass ()
-		.deriveClass <RouteTimeAxisView, TimeAxisView> ("RouteTimeAxisView")
-		.endClass ()
-#endif
 
 		.beginClass <Selectable> ("Selectable")
 		.endClass ()
+
 		.deriveClass <TimeAxisViewItem, Selectable> ("TimeAxisViewItem")
 		.endClass ()
+
 		.deriveClass <RegionView, TimeAxisViewItem> ("RegionView")
 		.endClass ()
 
+		.deriveClass <RouteUI, Selectable> ("RouteUI")
+		.endClass ()
+
+		.deriveClass <RouteTimeAxisView, RouteUI> ("RouteTimeAxisView")
+		.addCast<TimeAxisView> ("to_timeaxisview")
+		.endClass ()
+
 		.beginStdCPtrList <Selectable> ("SelectionList")
 		.endClass ()
 
diff --git a/gtk2_ardour/route_ui.h b/gtk2_ardour/route_ui.h
index d0b9d406c6..6f53b7232d 100644
--- a/gtk2_ardour/route_ui.h
+++ b/gtk2_ardour/route_ui.h
@@ -74,7 +74,7 @@ class RoutePinWindowProxy : public WM::ProxyBase
 	PBD::ScopedConnection going_away_connection;
 };
 
-class RouteUI : public virtual ARDOUR::SessionHandlePtr, public virtual PBD::ScopedConnectionList, public virtual Selectable, public virtual sigc::trackable
+class RouteUI : public virtual Selectable, public virtual ARDOUR::SessionHandlePtr, public virtual PBD::ScopedConnectionList, public virtual sigc::trackable
 {
   public:
 	RouteUI (ARDOUR::Session*);