diff --git a/index.js b/index.js
index <HASH>..<HASH> 100644
--- a/index.js
+++ b/index.js
@@ -13,6 +13,7 @@ convert = function(source) {
       line,
       objectNames = [],
       output = {},
+      parents,
       parentObj = {},
       i,
       linesLength,
Added `parents` declaration