diff --git a/lib/main.js b/lib/main.js
index 7e2cb3fc..15ae4bf4 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -46,9 +46,7 @@ process.on('unhandledRejection', errorHandler);
  * @returns {never}
  */
 function errorHandler(err) {
-  // eslint unicorn/no-useless-undefined: ["warn", {"checkArguments": false}] -- Bad TS type.
-  // eslint-disable-next-line unicorn/no-useless-undefined -- Above doesn't work?
-  Spinner.fail(undefined);
+  Spinner.fail();
   let userSrc = null;
   try {
     userSrc = options.userSrc();
diff --git a/lib/spinner.js b/lib/spinner.js
index bcef9dba..ff5afa65 100644
--- a/lib/spinner.js
+++ b/lib/spinner.js
@@ -59,7 +59,7 @@ function succeedAndNowDo(text) {
 /**
  * Fails the current task and replaces its text with the given text.
  *
- * @param {string | undefined} text
+ * @param {string | undefined} [text]
  * @returns {void}
  */
 function fail(text) {