diff --git a/to-lower-case/khakaa.js b/to-lower-case/khakaa.js
new file mode 100644
index 0000000000..78b244b290
--- /dev/null
+++ b/to-lower-case/khakaa.js
@@ -0,0 +1,7 @@
+/**
+ * @param {string} s
+ * @return {string}
+ */
+var toLowerCase = function (s) {
+  return s.toLowerCase();
+};