diff --git a/gtk2_ardour/editor.h b/gtk2_ardour/editor.h
index a7de0498a0..dfbb4535e2 100644
--- a/gtk2_ardour/editor.h
+++ b/gtk2_ardour/editor.h
@@ -322,6 +322,7 @@ class Editor : public PublicEditor, public PBD::ScopedConnectionList, public ARD
 	void create_editor_mixer ();
 	void show_editor_list (bool yn);
 	void set_selected_mixer_strip (TimeAxisView&);
+	void mixer_strip_width_changed ();
 	void hide_track_in_display (TimeAxisView* tv, bool temporary = false);
 
 	/* nudge is initiated by transport controls owned by ARDOUR_UI */
diff --git a/gtk2_ardour/editor_mixer.cc b/gtk2_ardour/editor_mixer.cc
index 5f321c7931..ec71892235 100644
--- a/gtk2_ardour/editor_mixer.cc
+++ b/gtk2_ardour/editor_mixer.cc
@@ -156,6 +156,7 @@ Editor::create_editor_mixer ()
 					      _session,
 					      false);
 	current_mixer_strip->Hiding.connect (sigc::mem_fun(*this, &Editor::current_mixer_strip_hidden));
+	current_mixer_strip->WidthChanged.connect (sigc::mem_fun (*this, &Editor::mixer_strip_width_changed));
 
 #ifdef GTKOSX
 	current_mixer_strip->WidthChanged.connect (sigc::mem_fun(*this, &Editor::ensure_all_elements_drawn));
@@ -237,7 +238,16 @@ void
 Editor::maybe_add_mixer_strip_width (XMLNode& node)
 {
 	if (current_mixer_strip) {
-		node.add_property ("mixer-width", enum_2_string (current_mixer_strip->get_width_enum()));
+		node.add_property ("mixer-width", enum_2_string (editor_mixer_strip_width));
 	}
 }
 
+void
+Editor::mixer_strip_width_changed ()
+{
+#ifdef GTKOSX
+	ensure_all_elements_drawn ();
+#endif
+
+	editor_mixer_strip_width = current_mixer_strip->get_width_enum ();
+}