diff --git a/fs-extra/fs-extra-tests.ts b/fs-extra/fs-extra-tests.ts
index 939821b6da..0919ef1b08 100644
--- a/fs-extra/fs-extra-tests.ts
+++ b/fs-extra/fs-extra-tests.ts
@@ -58,9 +58,13 @@ fs.createFile(file, errorCallback);
 fs.createFileSync(file);
 
 fs.mkdirs(dir, errorCallback);
+fs.mkdirs(dir, {}, errorCallback);
 fs.mkdirsSync(dir);
+fs.mkdirsSync(dir, {});
 fs.mkdirp(dir, errorCallback);
+fs.mkdirp(dir, {}, errorCallback);
 fs.mkdirpSync(dir);
+fs.mkdirpSync(dir, {});
 
 fs.outputFile(file, data, errorCallback);
 fs.outputFileSync(file, data);
diff --git a/fs-extra/fs-extra.d.ts b/fs-extra/fs-extra.d.ts
index 5b1ecf0b99..852956a71b 100644
--- a/fs-extra/fs-extra.d.ts
+++ b/fs-extra/fs-extra.d.ts
@@ -52,8 +52,10 @@ declare module "fs-extra" {
 
 	export function mkdirs(dir: string, callback?: (err: Error) => void): void;
 	export function mkdirp(dir: string, callback?: (err: Error) => void): void;
-	export function mkdirsSync(dir: string): void;
-	export function mkdirpSync(dir: string): void;
+	export function mkdirs(dir: string, options?: MkdirOptions, callback?: (err: Error) => void): void;
+	export function mkdirp(dir: string, options?: MkdirOptions, callback?: (err: Error) => void): void;
+	export function mkdirsSync(dir: string, options?: MkdirOptions): void;
+	export function mkdirpSync(dir: string, options?: MkdirOptions): void;
 
 	export function outputFile(file: string, data: any, callback?: (err: Error) => void): void;
 	export function outputFileSync(file: string, data: any): void;
@@ -171,6 +173,11 @@ declare module "fs-extra" {
 		flag?: string;
 	}
 
+	export interface MkdirOptions {
+		fs?: any;
+		mode?: number;
+	}
+
 	export interface ReadStreamOptions {
 		flags?: string;
 		encoding?: string;