diff --git a/types/shelljs/index.d.ts b/types/shelljs/index.d.ts
index 0301f2c1e0..7557ddae22 100644
--- a/types/shelljs/index.d.ts
+++ b/types/shelljs/index.d.ts
@@ -6,6 +6,7 @@
 //                 Paul Huynh <https://github.com/pheromonez>
 //                 Alexander Futász <https://github.com/aldafu>
 //                 ExE Boss <https://github.com/ExE-Boss>
+//                 Mirco Sanguineti <https://github.com/msanguineti>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 /// <reference types="node"/>
@@ -965,6 +966,51 @@ export type ShellString = string & ShellReturnValue;
 
 export type ShellArray = string[] & ShellReturnValue;
 
+export interface ShellStringConstructor {
+	/**
+	 * Wraps a string (or array) value. This has all the string (or array) methods,
+	 * but also exposes extra methods: `.to()`, `.toEnd()`, and all the pipe-able
+	 * methods (ex. `.cat()`, `.grep()`, etc.).
+	 *
+	 * This can be easily converted into a string by calling `.toString()`.
+	 *
+	 * This type also exposes the corresponding command's stdout, stderr, and return status
+	 * code via the `.stdout` (string), `.stderr` (string), and `.code` (number) properties
+	 * respectively.
+	 *
+	 * Construct signature allows for:
+	 *
+	 * var foo = new ShellString('hello world');
+	 *
+	 * as per example in shelljs docs:
+	 * https://github.com/shelljs/shelljs#shellstringstr
+	 *
+	 * @param value 	The string value to wrap.
+	 * @return				A string-like object with special methods.
+	 */
+	new(value: string): ShellString;
+	new(value: string[]): ShellArray;
+
+	/**
+	 * Wraps a string (or array) value. This has all the string (or array) methods,
+	 * but also exposes extra methods: `.to()`, `.toEnd()`, and all the pipe-able
+	 * methods (ex. `.cat()`, `.grep()`, etc.).
+	 *
+	 * This can be easily converted into a string by calling `.toString()`.
+	 *
+	 * This type also exposes the corresponding command's stdout, stderr, and return status
+	 * code via the `.stdout` (string), `.stderr` (string), and `.code` (number) properties
+	 * respectively.
+	 *
+	 * @param value 	The string value to wrap.
+	 * @return				A string-like object with special methods.
+	 */
+	(value: string): ShellString;
+	(value: string[]): ShellArray;
+}
+
+export const ShellString: ShellStringConstructor;
+
 export interface ChmodFunction {
 	/**
 	 * Alters the permissions of a file or directory by either specifying the absolute
diff --git a/types/shelljs/make.d.ts b/types/shelljs/make.d.ts
index b6b6f99fa9..652b0cfb45 100644
--- a/types/shelljs/make.d.ts
+++ b/types/shelljs/make.d.ts
@@ -39,4 +39,5 @@ declare global {
 	const tempdir: typeof shelljs.tempdir;
 	const touch: typeof shelljs.touch;
 	const uniq: typeof shelljs.uniq;
+	const ShellString: typeof shelljs.ShellString;
 }
diff --git a/types/shelljs/shelljs-tests.ts b/types/shelljs/shelljs-tests.ts
index 37d8933e39..b7b7afc5b1 100644
--- a/types/shelljs/shelljs-tests.ts
+++ b/types/shelljs/shelljs-tests.ts
@@ -196,3 +196,9 @@ shell
 	.ls("dir")
 	.grep(/^stuff/)
 	.head({"-n": 5}).stdout;
+
+const foo = new shell.ShellString('hello world');
+const farr = new shell.ShellString(['hello', 'world']);
+
+const boo = shell.ShellString('hello world');
+const barr = shell.ShellString(['hello', 'world']);