diff --git a/gtk2_ardour/route_ui.cc b/gtk2_ardour/route_ui.cc
index 0c4ceab4c3..2257acd83e 100644
--- a/gtk2_ardour/route_ui.cc
+++ b/gtk2_ardour/route_ui.cc
@@ -1512,6 +1512,9 @@ RouteUI::route_rename ()
 				done = true;
 			}
 			break;
+		default:
+			done = true;
+			break;
 		}
 	}