diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..d21917b
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,37 @@
+// Type definitions ported from DefinitelyTyped
+// Ported by: M4rk9696 <https://github.com/M4rk9696>
+// Original Definitions by: Łukasz Ostrowski <https://github.com/lukostry>
+
+import { Chalk } from 'chalk';
+import type {SpinnerName} from 'cli-spinners';
+import type { Component } from 'react';
+
+type StringifyPartial<T> = {
+    [P in keyof T]?: string;
+};
+
+type BooleansPartial<T> = {
+    [P in keyof T]?: boolean;
+};
+
+type TupleOfNumbersPartial<T> = {
+    [P in keyof T]?: [number, number, number];
+};
+// Omit taken from https://www.typescriptlang.org/docs/handbook/release-notes/typescript-2-8.html
+type Omit<T, K> = Pick<T, Exclude<keyof T, K>>;
+
+type ChalkColorModels = Pick<Chalk, 'rgb' | 'hsl' | 'hsv' | 'hwb' | 'bgRgb' | 'bgHsl' | 'bgHsv' | 'bgHwb'>;
+type ChalkKeywordsAndHexes = Pick<Chalk, 'keyword' | 'hex' | 'bgKeyword' | 'bgHex'>;
+type ChalkCommons = Omit<Chalk, keyof ChalkColorModels | keyof ChalkKeywordsAndHexes | 'constructor' | 'level' | 'enabled'>;
+
+interface SpinnerProps {
+    type?: SpinnerName;
+}
+
+type ChalkProps = BooleansPartial<ChalkCommons>
+    & StringifyPartial<ChalkKeywordsAndHexes>
+    & TupleOfNumbersPartial<ChalkColorModels>;
+
+declare class Spinner extends Component<SpinnerProps & ChalkProps> { }
+
+export = Spinner;
diff --git a/index.test-d.tsx b/index.test-d.tsx
new file mode 100644
index 0000000..a7f69d9
--- /dev/null
+++ b/index.test-d.tsx
@@ -0,0 +1,12 @@
+import * as React from "react";
+import Spinner = require(".");
+import { render } from "ink";
+
+render(
+	<>
+		<Spinner type="dots" />
+		<Spinner green italic />
+		<Spinner hex="#fefefe" />
+		<Spinner rgb={[255, 100, 2]} />
+	</>
+);
diff --git a/package.json b/package.json
index b1e0a08..3b00516 100644
--- a/package.json
+++ b/package.json
@@ -10,17 +10,19 @@
 		"url": "github.com/vadimdemedes"
 	},
 	"main": "build/index.js",
+	"types": "index.d.ts",
 	"engines": {
 		"node": ">=8"
 	},
 	"scripts": {
 		"pretest": "npm run build",
-		"test": "xo && ava",
+		"test": "tsc --noEmit --jsx react --module commonjs index.test-d.tsx && xo && ava",
 		"build": "babel src --out-dir=build",
 		"prepare": "npm run build"
 	},
 	"files": [
-		"build"
+		"build",
+		"index.d.ts"
 	],
 	"keywords": [
 		"ink",
@@ -44,7 +46,7 @@
 		"@babel/preset-react": "^7.0.0",
 		"@babel/register": "^7.10.3",
 		"ava": "^3.9.0",
-		"babel-eslint": "^10.0.1",
+		"babel-eslint": "^10.1.0",
 		"delay": "^4.1.0",
 		"eslint-config-xo-react": "^0.23.0",
 		"eslint-plugin-react": "^7.20.0",
@@ -52,6 +54,7 @@
 		"ink": "^2.0.0",
 		"ink-testing-library": "^1.0.0",
 		"react": "^16.8.2",
+		"typescript": "^3.9.5",
 		"xo": "^0.32.0"
 	},
 	"peerDependencies": {
@@ -76,6 +79,10 @@
 		"parser": "babel-eslint",
 		"extends": [
 			"xo-react"
+		],
+		"ignores": [
+			"index.d.ts",
+			"index.test-d.tsx"
 		]
 	}
 }
diff --git a/test.js b/test.js
index ed087f4..823be42 100644
--- a/test.js
+++ b/test.js
@@ -14,5 +14,9 @@ test('render spinner', async t => {
 
 	const uniqueFrames = [...new Set(frames)];
 
+	if (process.env.CI && uniqueFrames[uniqueFrames.length - 1] === '\n') {
+		uniqueFrames.pop();
+	}
+
 	t.deepEqual(uniqueFrames, spinner.frames);
 });