diff --git a/codewars/7kyu/make-them-bark/koronya.js b/codewars/7kyu/make-them-bark/koronya.js
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+++ b/codewars/7kyu/make-them-bark/koronya.js
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+// [JS][7kyu] Make them bark!
+// make-them-bark
+// https://www.codewars.com/kata/5535572c1de94ba2db0000f6/train/javascript
+
+Dog.prototype.bark = function () {
+  return 'Woof!'
+}