diff --git a/src/utils/comparator/Comparator.js b/src/utils/comparator/Comparator.js
index 12957d2d7..f5c41b5c1 100644
--- a/src/utils/comparator/Comparator.js
+++ b/src/utils/comparator/Comparator.js
@@ -1,5 +1,6 @@
 export default class Comparator {
   /**
+   * Constructor.
    * @param {function(a: *, b: *)} [compareFunction] - It may be custom compare function that, let's
    * say may compare custom objects together.
    */