diff --git a/src/hooks/useSelector.js b/src/hooks/useSelector.js
index 62171b3ee..970885601 100644
--- a/src/hooks/useSelector.js
+++ b/src/hooks/useSelector.js
@@ -25,7 +25,7 @@ const refEquality = (a, b) => a === b
  * whether the component needs to be re-rendered.
  *
  * @param {Function} selector the selector function
- * @param {Function} equalityFn the function that will be used to determine equality
+ * @param {Function} [equalityFn] the function that will be used to determine equality
  *
  * @returns {any} the selected state
  *