diff --git a/gtk2_ardour/editor.cc b/gtk2_ardour/editor.cc
index c8a50a1e25..2b7182059b 100644
--- a/gtk2_ardour/editor.cc
+++ b/gtk2_ardour/editor.cc
@@ -3610,6 +3610,7 @@ Editor::set_visible_track_count (int32_t n)
 
 	int h;
 	string str;
+	DisplaySuspender ds;
 	
 	if (_visible_track_count > 0) {
 		h = trackviews_height() / _visible_track_count;