diff --git a/lib/stringify.js b/lib/stringify.js
index 317a64f..990e9dc 100644
--- a/lib/stringify.js
+++ b/lib/stringify.js
@@ -140,7 +140,7 @@ var visitor = {
     }
 
     if (element instanceof Array) {
-      return visitor.visit_array(element, result);
+      return visitor.visit_array(element);
     } else if (element.type) {
       var nodeVisitor = visitor['visit_' + element.type];
       if (nodeVisitor) {