diff --git a/libs/ardour/ardour/route.h b/libs/ardour/ardour/route.h
index 195421b231..9d16c00ba3 100644
--- a/libs/ardour/ardour/route.h
+++ b/libs/ardour/ardour/route.h
@@ -368,10 +368,6 @@ public:
 	/** Emitted with the process lock held */
 	PBD::Signal0<void>       io_changed;
 
-	/* gui's call this for their own purposes. */
-
-	PBD::Signal2<void,std::string,void*> gui_changed;
-
 	/* stateful */
 
 	XMLNode& get_state();
diff --git a/libs/ardour/ardour/stripable.h b/libs/ardour/ardour/stripable.h
index e49767f50d..5447d8322b 100644
--- a/libs/ardour/ardour/stripable.h
+++ b/libs/ardour/ardour/stripable.h
@@ -79,11 +79,14 @@ class LIBARDOUR_API Stripable : public SessionObject {
 	void  set_presentation_order (PresentationInfo::order_t, bool notify_class_listeners = true);
 	void  set_presentation_order_explicit (PresentationInfo::order_t);
 
+	/* gui's call this for their own purposes. */
+
+	PBD::Signal2<void,std::string,void*> gui_changed;
+
 	/***************************************************************
 	 * Pure interface begins here
 	 ***************************************************************/
 
-
 	virtual boost::shared_ptr<PeakMeter>       peak_meter() = 0;
 	virtual boost::shared_ptr<const PeakMeter> peak_meter() const = 0;