diff --git a/gtk2_ardour/add_route_dialog.cc b/gtk2_ardour/add_route_dialog.cc
index 744b3c78f6..894eebdda9 100644
--- a/gtk2_ardour/add_route_dialog.cc
+++ b/gtk2_ardour/add_route_dialog.cc
@@ -165,6 +165,7 @@ AddRouteDialog::AddRouteDialog ()
 		     );
 	}
 
+	/* order needs to match enum InsertAt */
 	insert_at_combo.append (_("First"));
 	insert_at_combo.append (_("Before Selection"));
 	insert_at_combo.append (_("After Selection"));
diff --git a/gtk2_ardour/route_dialogs.h b/gtk2_ardour/route_dialogs.h
index 843da65551..848adbfc3a 100644
--- a/gtk2_ardour/route_dialogs.h
+++ b/gtk2_ardour/route_dialogs.h
@@ -22,9 +22,9 @@
 namespace RouteDialogs {
 
 enum InsertAt {
+	First,
 	BeforeSelection,
 	AfterSelection,
-	First,
 	Last
 };