diff --git a/cli/js/deno.ts b/cli/js/deno.ts
index c563d5112c..ab11444960 100644
--- a/cli/js/deno.ts
+++ b/cli/js/deno.ts
@@ -73,7 +73,7 @@ export {
   MakeTempOptions
 } from "./make_temp.ts";
 export { metrics, Metrics } from "./metrics.ts";
-export { mkdirSync, mkdir } from "./mkdir.ts";
+export { mkdirSync, mkdir, MkdirOptions } from "./mkdir.ts";
 export {
   Addr,
   connect,
@@ -115,7 +115,7 @@ export { readDirSync, readDir } from "./read_dir.ts";
 export { readFileSync, readFile } from "./read_file.ts";
 export { readlinkSync, readlink } from "./read_link.ts";
 export { realpathSync, realpath } from "./realpath.ts";
-export { removeSync, remove, RemoveOption } from "./remove.ts";
+export { removeSync, remove, RemoveOptions } from "./remove.ts";
 export { renameSync, rename } from "./rename.ts";
 export { resources } from "./resources.ts";
 export { signal, signals, SignalStream } from "./signals.ts";
diff --git a/cli/js/lib.deno.ns.d.ts b/cli/js/lib.deno.ns.d.ts
index 55cca78cff..4a13bafb6d 100644
--- a/cli/js/lib.deno.ns.d.ts
+++ b/cli/js/lib.deno.ns.d.ts
@@ -721,7 +721,7 @@ declare namespace Deno {
 
   // @url js/mkdir.d.ts
 
-  export interface MkdirOption {
+  export interface MkdirOptions {
     /** Defaults to `false`. If set to `true`, means that any intermediate
      * directories will also be created (as with the shell command `mkdir -p`).
      * Intermediate directories are created with the same permissions.
@@ -740,7 +740,7 @@ declare namespace Deno {
    *       Deno.mkdirSync("nested/directories", { recursive: true });
    *
    * Requires `allow-write` permission. */
-  export function mkdirSync(path: string, options?: MkdirOption): void;
+  export function mkdirSync(path: string, options?: MkdirOptions): void;
 
   /** @deprecated */
   export function mkdirSync(
@@ -755,7 +755,7 @@ declare namespace Deno {
    *       await Deno.mkdir("nested/directories", { recursive: true });
    *
    * Requires `allow-write` permission. */
-  export function mkdir(path: string, options?: MkdirOption): Promise<void>;
+  export function mkdir(path: string, options?: MkdirOptions): Promise<void>;
 
   /** @deprecated */
   export function mkdir(
@@ -920,8 +920,7 @@ declare namespace Deno {
 
   // @url js/remove.d.ts
 
-  /** UNSTABLE: rename to RemoveOptions */
-  export interface RemoveOption {
+  export interface RemoveOptions {
     /** Defaults to `false`. If set to `true`, path will be removed even if
      * it's a non-empty directory. */
     recursive?: boolean;
@@ -934,7 +933,7 @@ declare namespace Deno {
    *       Deno.removeSync("/path/to/dir/or/file", { recursive: false });
    *
    * Requires `allow-write` permission. */
-  export function removeSync(path: string, options?: RemoveOption): void;
+  export function removeSync(path: string, options?: RemoveOptions): void;
 
   /** Removes the named file or directory. Throws error if permission denied,
    * path not found, or path is a non-empty directory and the `recursive`
@@ -943,7 +942,7 @@ declare namespace Deno {
    *       await Deno.remove("/path/to/dir/or/file", { recursive: false });
    *
    * Requires `allow-write` permission. */
-  export function remove(path: string, options?: RemoveOption): Promise<void>;
+  export function remove(path: string, options?: RemoveOptions): Promise<void>;
 
   // @url js/rename.d.ts
 
diff --git a/cli/js/mkdir.ts b/cli/js/mkdir.ts
index ecb15a9c59..4d15d9a44c 100644
--- a/cli/js/mkdir.ts
+++ b/cli/js/mkdir.ts
@@ -5,7 +5,7 @@ import { sendSync, sendAsync } from "./dispatch_json.ts";
 // mkdir and mkdirSync.
 function mkdirArgs(
   path: string,
-  optionsOrRecursive?: MkdirOption | boolean,
+  optionsOrRecursive?: MkdirOptions | boolean,
   mode?: number
 ): { path: string; recursive: boolean; mode: number } {
   const args = { path, recursive: false, mode: 0o777 };
@@ -25,7 +25,7 @@ function mkdirArgs(
   return args;
 }
 
-export interface MkdirOption {
+export interface MkdirOptions {
   /** Defaults to `false`. If set to `true`, means that any intermediate
    * directories will also be created (as with the shell command `mkdir -p`).
    * Intermediate directories are created with the same permissions.
@@ -46,7 +46,7 @@ export interface MkdirOption {
  * Requires `allow-write` permission. */
 export function mkdirSync(
   path: string,
-  optionsOrRecursive?: MkdirOption | boolean,
+  optionsOrRecursive?: MkdirOptions | boolean,
   mode?: number
 ): void {
   sendSync("op_mkdir", mkdirArgs(path, optionsOrRecursive, mode));
@@ -60,7 +60,7 @@ export function mkdirSync(
  * Requires `allow-write` permission. */
 export async function mkdir(
   path: string,
-  optionsOrRecursive?: MkdirOption | boolean,
+  optionsOrRecursive?: MkdirOptions | boolean,
   mode?: number
 ): Promise<void> {
   await sendAsync("op_mkdir", mkdirArgs(path, optionsOrRecursive, mode));
diff --git a/cli/js/remove.ts b/cli/js/remove.ts
index 4d15cf241f..89e5850ab5 100644
--- a/cli/js/remove.ts
+++ b/cli/js/remove.ts
@@ -1,7 +1,7 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 import { sendSync, sendAsync } from "./dispatch_json.ts";
 
-export interface RemoveOption {
+export interface RemoveOptions {
   /** Defaults to `false`. If set to `true`, path will be removed even if
    * it's a non-empty directory. */
   recursive?: boolean;
@@ -14,7 +14,7 @@ export interface RemoveOption {
  *       Deno.removeSync("/path/to/dir/or/file", { recursive: false });
  *
  * Requires `allow-write` permission. */
-export function removeSync(path: string, options: RemoveOption = {}): void {
+export function removeSync(path: string, options: RemoveOptions = {}): void {
   sendSync("op_remove", { path, recursive: !!options.recursive });
 }
 
@@ -27,7 +27,7 @@ export function removeSync(path: string, options: RemoveOption = {}): void {
  * Requires `allow-write` permission. */
 export async function remove(
   path: string,
-  options: RemoveOption = {}
+  options: RemoveOptions = {}
 ): Promise<void> {
   await sendAsync("op_remove", { path, recursive: !!options.recursive });
 }