diff --git a/lib/main.js b/lib/main.js
index 389d1c6..acfeff2 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -25,7 +25,7 @@ export const allImplementations = implementations;
  * @param {Map} [options.implementations=allImplementations] - A Map of
  *   implementations.
  * @param {Function<boolean>} options.filter - A function to
- *   filter the map's entries on that returns true or false.
+ *   filter the map's entries, that returns true or false.
  *
  * @returns {Object<string, Map>} Returns an object with matching
  *   and non-matching maps.
@@ -87,7 +87,7 @@ export const endpoints = {
  * @param {Map} [options.implementations=allImplementations] - A Map of
  *   implementations.
  * @param {Function<boolean>} options.filter - A function to
- *  filter the map's entries that returns true or false.
+ *  filter the map's entries, that returns true or false.
  *
  * @returns {{match: Map, nonMatch: Map}} Returns an object with matching
  *   and non-matching Maps with respective endpoints.