diff --git a/gtk2_ardour/editor.cc b/gtk2_ardour/editor.cc
index b5c63d65f3..6859885ebc 100644
--- a/gtk2_ardour/editor.cc
+++ b/gtk2_ardour/editor.cc
@@ -850,6 +850,9 @@ Editor::dpi_reset ()
 
 	ArdourMarker::setup_sizes (timebar_height);
 	TempoCurve::setup_sizes (timebar_height);
+
+	clear_marker_display ();
+	refresh_location_display  ();
 }
 
 bool