diff --git a/gtk2_ardour/editor_items.h b/gtk2_ardour/editor_items.h
index 088f3030d8..ff91f6317e 100644
--- a/gtk2_ardour/editor_items.h
+++ b/gtk2_ardour/editor_items.h
@@ -44,6 +44,7 @@ enum ItemType {
 	MeterBarItem,
 	TempoBarItem,
 	MappingBarItem,
+	MappingCursorItem,
 	RegionViewNameHighlight,
 	RegionViewName,
 	StartSelectionTrimItem,