diff --git a/lib/ModuleFilenameHelpers.js b/lib/ModuleFilenameHelpers.js
index dd8314edf94..236c7ec8df8 100644
--- a/lib/ModuleFilenameHelpers.js
+++ b/lib/ModuleFilenameHelpers.js
@@ -14,7 +14,7 @@ const memoize = require("./util/memoize");
 /** @typedef {import("./RequestShortener")} RequestShortener */
 /** @typedef {typeof import("./util/Hash")} Hash */
 
-/** @typedef {string | RegExp | string[] | RegExp[]} Matcher */
+/** @typedef {string | RegExp | (string | RegExp)[]} Matcher */
 /** @typedef {{test?: Matcher, include?: Matcher, exclude?: Matcher }} MatchObject */
 
 const ModuleFilenameHelpers = exports;
diff --git a/types.d.ts b/types.d.ts
index 0009c9bf054..edf023557e6 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -6818,11 +6818,11 @@ declare interface MapOptions {
 	module?: boolean;
 }
 declare interface MatchObject {
-	test?: string | RegExp | string[] | RegExp[];
-	include?: string | RegExp | string[] | RegExp[];
-	exclude?: string | RegExp | string[] | RegExp[];
+	test?: string | RegExp | (string | RegExp)[];
+	include?: string | RegExp | (string | RegExp)[];
+	exclude?: string | RegExp | (string | RegExp)[];
 }
-type Matcher = string | RegExp | string[] | RegExp[];
+type Matcher = string | RegExp | (string | RegExp)[];
 
 /**
  * Options object for in-memory caching.