--- a/src/luan/LuanException.java	Thu Oct 22 00:33:04 2020 -0600
+++ b/src/luan/LuanException.java	Thu Nov 05 20:24:09 2020 -0700
@@ -35,6 +35,11 @@
 		clone.extra = (Map)cloner.clone(extra);
 	}
 
+	@Override public void makeImmutable(LuanImmutabler immutabler) throws LuanException {
+		immutabler.makeImmutable(table);
+		immutabler.makeImmutable(extra);
+	}
+
 	public void put(String key,Object value) throws LuanException {
 		if( table == null ) {
 			extra.put(key,value);