diff --git a/gtk2_ardour/ui/tracks_preferences.xml b/gtk2_ardour/ui/tracks_preferences.xml
index 91f1c0e295..caffdc48a6 100644
--- a/gtk2_ardour/ui/tracks_preferences.xml
+++ b/gtk2_ardour/ui/tracks_preferences.xml
@@ -987,7 +987,7 @@
-
+
@@ -998,6 +998,21 @@
activeicon="waves_check_box_active"
toggleable="true"/>
+
+
+