diff --git a/lib/index.js b/lib/index.js
index 6851d7b..69ad924 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -31,9 +31,9 @@
  *
  * @typedef Context
  *   Processing context.
- * @property {FileSet | undefined} fileSet
+ * @property {FileSet} fileSet
  *   Internally used info.
- * @property {Array<VFile> | undefined} files
+ * @property {Array<VFile>} files
  *   Processed files.
  *
  * @typedef Options
@@ -119,7 +119,7 @@
  * @property {VFileReporter | string | undefined} [reporter]
  *   Reporter to use (default: `'vfile-reporter'`); if a `string` is passed,
  *   it’s loaded from `cwd`, and `'vfile-reporter-'` can be omitted
- * @property {VFileReporterOptions | undefined} [reporterOptions]
+ * @property {VFileReporterKnownFields & {[key: string]: unknown} | undefined} [reporterOptions]
  *   Config to pass to the used reporter (optional).
  * @property {UnifiedSettings | undefined} [settings]
  *   Configuration for the parser and compiler of the processor (optional).
@@ -190,13 +190,10 @@
  *   for unknown fields in options and async support.
  * @param {Array<VFile>} files
  *   Files.
- * @param {VFileReporterOptions} options
+ * @param {VFileReporterKnownFields & {[key: string]: unknown}} options
  *   Configuration.
  * @returns {Promise<string> | string}
  *   Report.
- *
- * @typedef {VFileReporterKnownFields & {[key: string]: unknown}} VFileReporterOptions
- *   Configuration.
  */
 
 import process from 'node:process'