diff --git a/gtk2_ardour/canvas_vars.h b/gtk2_ardour/canvas_vars.h
index b7eb85c37a..206c509f06 100644
--- a/gtk2_ardour/canvas_vars.h
+++ b/gtk2_ardour/canvas_vars.h
@@ -18,6 +18,7 @@
 */
 
 CANVAS_VARIABLE(ActiveCrossfade, "active crossfade")
+CANVAS_VARIABLE(canvasvar_ArrangeBase, "arrange base")
 CANVAS_VARIABLE(AudioBusBase, "audio bus base")
 CANVAS_VARIABLE(AudioMasterBusBase, "audio master bus base")
 CANVAS_VARIABLE(AudioTrackBase, "audio track base")
diff --git a/gtk2_ardour/default_ui_config.in b/gtk2_ardour/default_ui_config.in
index 346bb69019..fc0fd6cba7 100644
--- a/gtk2_ardour/default_ui_config.in
+++ b/gtk2_ardour/default_ui_config.in
@@ -15,6 +15,7 @@
   </UI>
   <Canvas>
     <Option name="active crossfade" value="20b2af2e"/>
+    <Option name="arrange base" value="595959ff"/>
     <Option name="audio bus base" value="73829968"/>
     <Option name="audio master bus base" value="00000000"/>
     <Option name="audio track base" value="9daac468"/>