diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c0974e733d..320793c9f81 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,5 @@
 # rollup changelog
 
-## 2.26.9
 *unreleased*
 
 ### Pull Requests
diff --git a/docs/999-big-list-of-options.md b/docs/999-big-list-of-options.md
index 92c214746f3..3fd97f8ef8d 100755
--- a/docs/999-big-list-of-options.md
+++ b/docs/999-big-list-of-options.md
@@ -1509,7 +1509,7 @@ Default: `true`
 Whether to clear the screen when a rebuild is triggered.
 
 #### watch.exclude
-Type: `string`<br>
+Type: `string | RegExp | (string | RegExp)[]`<br>
 CLI: `--watch.exclude <files>`
 
 Prevent files from being watched:
@@ -1525,7 +1525,7 @@ export default {
 ```
 
 #### watch.include
-Type: `string`<br>
+Type: `string | RegExp | (string | RegExp)[]`<br>
 CLI: `--watch.include <files>`
 
 Limit the file-watching to certain files. Note that this only filters the module graph but does not allow to add additional watch files:
diff --git a/src/rollup/types.d.ts b/src/rollup/types.d.ts
index bd95c1fe609..0066f1d7d53 100644
--- a/src/rollup/types.d.ts
+++ b/src/rollup/types.d.ts
@@ -754,8 +754,8 @@ export interface WatcherOptions {
 	buildDelay?: number;
 	chokidar?: ChokidarOptions;
 	clearScreen?: boolean;
-	exclude?: string[];
-	include?: string[];
+	exclude?: string | RegExp | (string | RegExp)[];
+	include?: string | RegExp | (string | RegExp)[];
 	skipWrite?: boolean;
 }