diff --git a/lib/parse.js b/lib/parse.js
index 8c9872ec..47570132 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -54,8 +54,7 @@ var parseObject = function (chain, val, options) {
         var root = chain[i];
 
         if (root === '[]') {
-            obj = [];
-            obj = obj.concat(leaf);
+            obj = [].concat(leaf);
         } else {
             obj = options.plainObjects ? Object.create(null) : {};
             var cleanRoot = root.charAt(0) === '[' && root.charAt(root.length - 1) === ']' ? root.slice(1, -1) : root;