diff --git a/src/fix-eperm.ts b/src/fix-eperm.ts
index 17372a9..5e7d5fe 100644
--- a/src/fix-eperm.ts
+++ b/src/fix-eperm.ts
@@ -1,4 +1,4 @@
-import { promises, chmodSync, FsError } from './fs.js'
+import { chmodSync, promises } from './fs.js'
 const { chmod } = promises
 
 export const fixEPERM =
@@ -6,7 +6,7 @@ export const fixEPERM =
     try {
       return await fn(path)
     } catch (er) {
-      const fer = er as FsError
+      const fer = er as NodeJS.ErrnoException
       if (fer?.code === 'ENOENT') {
         return
       }
@@ -14,7 +14,7 @@ export const fixEPERM =
         try {
           await chmod(path, 0o666)
         } catch (er2) {
-          const fer2 = er2 as FsError
+          const fer2 = er2 as NodeJS.ErrnoException
           if (fer2?.code === 'ENOENT') {
             return
           }
@@ -30,7 +30,7 @@ export const fixEPERMSync = (fn: (path: string) => any) => (path: string) => {
   try {
     return fn(path)
   } catch (er) {
-    const fer = er as FsError
+    const fer = er as NodeJS.ErrnoException
     if (fer?.code === 'ENOENT') {
       return
     }
@@ -38,7 +38,7 @@ export const fixEPERMSync = (fn: (path: string) => any) => (path: string) => {
       try {
         chmodSync(path, 0o666)
       } catch (er2) {
-        const fer2 = er2 as FsError
+        const fer2 = er2 as NodeJS.ErrnoException
         if (fer2?.code === 'ENOENT') {
           return
         }
diff --git a/src/fs.ts b/src/fs.ts
index 4ee7128..692298a 100644
--- a/src/fs.ts
+++ b/src/fs.ts
@@ -2,11 +2,6 @@
 
 import fs from 'fs'
 
-export type FsError = Error & {
-  code?: string
-  path?: string
-}
-
 // sync ones just take the sync version from node
 export {
   chmodSync,
diff --git a/src/ignore-enoent.ts b/src/ignore-enoent.ts
index ec1dc77..076f31c 100644
--- a/src/ignore-enoent.ts
+++ b/src/ignore-enoent.ts
@@ -1,4 +1,3 @@
-import { FsError } from './fs.js'
 
 export const ignoreENOENT = async (p: Promise<any>) =>
   p.catch(er => {
@@ -11,7 +10,7 @@ export const ignoreENOENTSync = (fn: () => any) => {
   try {
     return fn()
   } catch (er) {
-    if ((er as FsError)?.code !== 'ENOENT') {
+    if ((er as NodeJS.ErrnoException)?.code !== 'ENOENT') {
       throw er
     }
   }
diff --git a/src/readdir-or-error.ts b/src/readdir-or-error.ts
index 82dd531..693365f 100644
--- a/src/readdir-or-error.ts
+++ b/src/readdir-or-error.ts
@@ -1,13 +1,13 @@
 // returns an array of entries if readdir() works,
 // or the error that readdir() raised if not.
-import { FsError, promises, readdirSync } from './fs.js'
+import {  promises, readdirSync } from './fs.js'
 const { readdir } = promises
 export const readdirOrError = (path: string) =>
-  readdir(path).catch(er => er as FsError)
+  readdir(path).catch(er => er as NodeJS.ErrnoException)
 export const readdirOrErrorSync = (path: string) => {
   try {
     return readdirSync(path)
   } catch (er) {
-    return er as FsError
+    return er as NodeJS.ErrnoException
   }
 }
diff --git a/src/retry-busy.ts b/src/retry-busy.ts
index 69c4778..5f2eb3c 100644
--- a/src/retry-busy.ts
+++ b/src/retry-busy.ts
@@ -1,7 +1,6 @@
 // note: max backoff is the maximum that any *single* backoff will do
 
 import { RimrafOptions } from '.'
-import { FsError } from './fs.js'
 
 export const MAXBACKOFF = 200
 export const RATE = 1.2
@@ -23,7 +22,7 @@ export const retryBusy = (fn: (path: string) => Promise<any>) => {
       try {
         return await fn(path)
       } catch (er) {
-        const fer = er as FsError
+        const fer = er as NodeJS.ErrnoException
         if (fer?.path === path && fer?.code && codes.has(fer.code)) {
           backoff = Math.ceil(backoff * rate)
           total = backoff + total
@@ -56,7 +55,7 @@ export const retryBusySync = (fn: (path: string) => any) => {
       try {
         return fn(path)
       } catch (er) {
-        const fer = er as FsError
+        const fer = er as NodeJS.ErrnoException
         if (
           fer?.path === path &&
           fer?.code &&
diff --git a/src/rimraf-move-remove.ts b/src/rimraf-move-remove.ts
index e9b4822..821eff4 100644
--- a/src/rimraf-move-remove.ts
+++ b/src/rimraf-move-remove.ts
@@ -18,7 +18,6 @@ import { ignoreENOENT, ignoreENOENTSync } from './ignore-enoent.js'
 
 import {
   chmodSync,
-  FsError,
   promises as fsPromises,
   renameSync,
   rmdirSync,
@@ -54,16 +53,16 @@ const unlinkFixEPERMSync = (path: string) => {
   try {
     unlinkSync(path)
   } catch (er) {
-    if ((er as FsError)?.code === 'EPERM') {
+    if ((er as NodeJS.ErrnoException)?.code === 'EPERM') {
       try {
         return chmodSync(path, 0o666)
       } catch (er2) {
-        if ((er2 as FsError)?.code === 'ENOENT') {
+        if ((er2 as NodeJS.ErrnoException)?.code === 'ENOENT') {
           return
         }
         throw er
       }
-    } else if ((er as FsError)?.code === 'ENOENT') {
+    } else if ((er as NodeJS.ErrnoException)?.code === 'ENOENT') {
       return
     }
     throw er
diff --git a/src/rimraf-windows.ts b/src/rimraf-windows.ts
index 57259ce..176f3e7 100644
--- a/src/rimraf-windows.ts
+++ b/src/rimraf-windows.ts
@@ -9,13 +9,13 @@
 // Note: "move then remove" is 2-10 times slower, and just as unreliable.
 
 import { parse, resolve } from 'path'
-import { ignoreENOENT, ignoreENOENTSync } from './ignore-enoent.js'
+import { RimrafOptions } from '.'
 import { fixEPERM, fixEPERMSync } from './fix-eperm.js'
+import { promises, rmdirSync, unlinkSync } from './fs.js'
+import { ignoreENOENT, ignoreENOENTSync } from './ignore-enoent.js'
 import { readdirOrError, readdirOrErrorSync } from './readdir-or-error.js'
 import { retryBusy, retryBusySync } from './retry-busy.js'
 import { rimrafMoveRemove, rimrafMoveRemoveSync } from './rimraf-move-remove.js'
-import { FsError, promises, rmdirSync, unlinkSync } from './fs.js'
-import { RimrafOptions } from '.'
 const { unlink, rmdir } = promises
 
 const rimrafWindowsFile = retryBusy(fixEPERM(unlink))
@@ -30,7 +30,7 @@ const rimrafWindowsDirMoveRemoveFallback = async (
   try {
     await rimrafWindowsDir(path, opt)
   } catch (er) {
-    if ((er as FsError)?.code === 'ENOTEMPTY') {
+    if ((er as NodeJS.ErrnoException)?.code === 'ENOTEMPTY') {
       return await rimrafMoveRemove(path, opt)
     }
     throw er
@@ -44,7 +44,7 @@ const rimrafWindowsDirMoveRemoveFallbackSync = (
   try {
     rimrafWindowsDirSync(path, opt)
   } catch (er) {
-    if ((er as FsError)?.code === 'ENOTEMPTY') {
+    if ((er as NodeJS.ErrnoException)?.code === 'ENOTEMPTY') {
       return rimrafMoveRemoveSync(path, opt)
     }
     throw er