--- rpl/modules/sets/types.rplc	2017/07/12 15:42:24	1.5
+++ rpl/modules/sets/types.rplc	2018/06/01 13:02:13	1.6
@@ -69,6 +69,8 @@ declareTypeExtension(parse)
 			}
 		}
 	}
+
+	parseError;
 endTypeExtension