diff --git a/challenges/02-javascript-algorithms-and-data-structures/es6.json b/challenges/02-javascript-algorithms-and-data-structures/es6.json
index 2d24982c73..3b46ea1a16 100644
--- a/challenges/02-javascript-algorithms-and-data-structures/es6.json
+++ b/challenges/02-javascript-algorithms-and-data-structures/es6.json
@@ -367,8 +367,8 @@
         "const sum = (function() {",
         "  \"use strict\";",
         "  return function sum(x, y, z) {",
-        "    const array = [ x, y, z ];",
-        "    return array.reduce((a, b) => a + b, 0);",
+        "    const args = [ x, y, z ];",
+        "    return args.reduce((a, b) => a + b, 0);",
         "  };",
         "})();",
         "console.log(sum(1, 2, 3)); // 6"