diff --git a/packages/retext-dutch/lib/index.js b/packages/retext-dutch/lib/index.js
index eed264f..3089087 100644
--- a/packages/retext-dutch/lib/index.js
+++ b/packages/retext-dutch/lib/index.js
@@ -8,7 +8,7 @@ import {ParseDutch} from 'parse-dutch'
 
 /** @type {import('unified').ParserClass<Root>} */
 
-/** @type {import('unified').Plugin<void[], string, Root>} */
+/** @type {import('unified').Plugin<[], string, Root>} */
 export default function retextDutch() {
   Object.assign(this, {Parser: unherit(ParseDutch)})
 }
diff --git a/packages/retext-english/lib/index.js b/packages/retext-english/lib/index.js
index fb1b7bd..06114bd 100644
--- a/packages/retext-english/lib/index.js
+++ b/packages/retext-english/lib/index.js
@@ -6,9 +6,7 @@ import {unherit} from 'unherit'
 // @ts-expect-error: untyped.
 import {ParseEnglish} from 'parse-english'
 
-/** @type {import('unified').ParserClass<Root>} */
-
-/** @type {import('unified').Plugin<void[], string, Root>} */
+/** @type {import('unified').Plugin<[], string, Root>} */
 export default function retextEnglish() {
   Object.assign(this, {Parser: unherit(ParseEnglish)})
 }
diff --git a/packages/retext-latin/lib/index.js b/packages/retext-latin/lib/index.js
index ef31f84..6372095 100644
--- a/packages/retext-latin/lib/index.js
+++ b/packages/retext-latin/lib/index.js
@@ -6,9 +6,7 @@ import {unherit} from 'unherit'
 // @ts-expect-error: untyped.
 import {ParseLatin} from 'parse-latin'
 
-/** @type {import('unified').ParserClass<Root>} */
-
-/** @type {import('unified').Plugin<void[], string, Root>} */
+/** @type {import('unified').Plugin<[], string, Root>} */
 export default function retextLatin() {
   Object.assign(this, {Parser: unherit(ParseLatin)})
 }
diff --git a/packages/retext-stringify/lib/index.js b/packages/retext-stringify/lib/index.js
index 1a97cf3..f753927 100644
--- a/packages/retext-stringify/lib/index.js
+++ b/packages/retext-stringify/lib/index.js
@@ -4,7 +4,7 @@
 
 import {toString} from 'nlcst-to-string'
 
-/** @type {import('unified').Plugin<void[], Root, string>} */
+/** @type {import('unified').Plugin<[], Root, string>} */
 export default function retextStringify() {
   Object.assign(this, {Compiler})
 }
diff --git a/test.js b/test.js
index bd8f94e..72b54f9 100644
--- a/test.js
+++ b/test.js
@@ -45,7 +45,7 @@ function eachParser(name) {
 
     const fp = './packages/retext-' + name + '/index.js'
 
-    /** @type {{default: import('unified').Plugin<void[], string, Root>}} */
+    /** @type {{default: import('unified').Plugin<[], string, Root>}} */
     // type-coverage:ignore-next-line
     const mod = await import(fp)