diff --git a/.gitignore b/.gitignore
index d388f83..5185cb1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 node_modules
 .DS_Store
 *.log
+.rpt2_cache
 build
 dist
 package-lock.json
diff --git a/package.json b/package.json
index 48f5825..852e13e 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,8 @@
     "prepare:babel": "babel --presets env src/*.js -d dist && npm t",
     "lint": "eslint src",
     "test:build": "node dist/cli.js --no-compress --cwd test/demo",
-    "test": "npm run -s lint && npm run -s build && npm run -s test:build",
+    "test:build:ts": "node dist/cli.js --no-compress --cwd test/ts-demo --entry=src/index.ts",
+    "test": "npm run -s lint && npm run -s build && npm run -s test:build && npm run -s test:build:ts",
     "release": "npm run -s prepare && npm test && git commit -am $npm_package_version && git tag $npm_package_version && git push && git push --tags && npm publish"
   },
   "repository": "developit/microbundle",
@@ -54,9 +55,11 @@
     "rollup-plugin-postcss": "^1.1.0",
     "rollup-plugin-preserve-shebang": "^0.1.4",
     "rollup-plugin-sizes": "^0.4.2",
+    "rollup-plugin-typescript": "^0.8.1",
     "rollup-plugin-strict-alias": "^1.0.0",
     "rollup-plugin-uglify": "^2.0.1",
     "sade": "^1.3.1",
+    "typescript": "^2.6.2",
     "uglify-es": "^3.3.6"
   },
   "devDependencies": {
diff --git a/src/index.js b/src/index.js
index 1972057..8dc7769 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,5 +1,5 @@
 import fs from 'fs';
-import { resolve, relative, dirname, basename } from 'path';
+import { resolve, relative, dirname, basename, extname } from 'path';
 import chalk from 'chalk';
 import { map, series } from 'asyncro';
 import promisify from 'es6-promisify';
@@ -17,6 +17,7 @@ import gzipSize from 'gzip-size';
 import prettyBytes from 'pretty-bytes';
 import shebangPlugin from 'rollup-plugin-preserve-shebang';
 import flow from 'rollup-plugin-flow';
+import typescript from 'rollup-plugin-typescript';
 import camelCase from 'camelcase';
 
 const interopRequire = m => m.default || m;
@@ -186,6 +187,8 @@ function createConfig(options, entry, format, writeMeta) {
 		catch (e) {}
 	}
 
+	const useTypescript = extname(entry)==='.ts';
+
 	let config = {
 		inputOptions: {
 			input: exportType ? resolve(__dirname, '../src/lib/__entry__.js') : entry,
@@ -202,7 +205,8 @@ function createConfig(options, entry, format, writeMeta) {
 					inject: false,
 					extract: !!writeMeta
 				}),
-				flow({ all: true }),
+				useTypescript && typescript(),
+				!useTypescript && flow({ all: true }),
 				nodent({
 					exclude: 'node_modules/**',
 					noRuntime: true,
@@ -216,7 +220,7 @@ function createConfig(options, entry, format, writeMeta) {
 						}
 					}
 				}),
-				buble({
+				!useTypescript && buble({
 					exclude: 'node_modules/**',
 					jsx: options.jsx || 'h',
 					objectAssign: options.assign || 'Object.assign',
diff --git a/test/demo/src/two.js b/test/demo/src/two.js
index 92318f3..2f26474 100644
--- a/test/demo/src/two.js
+++ b/test/demo/src/two.js
@@ -1,3 +1,3 @@
 export async function two(...args) {
 	return args.reduce( (total, value) => total + value, 0);
-}
\ No newline at end of file
+}
diff --git a/test/ts-demo/package.json b/test/ts-demo/package.json
new file mode 100644
index 0000000..3a020c0
--- /dev/null
+++ b/test/ts-demo/package.json
@@ -0,0 +1,3 @@
+{
+  "name": "ts-demo"
+}
diff --git a/test/ts-demo/src/car.ts b/test/ts-demo/src/car.ts
new file mode 100644
index 0000000..4eb11a6
--- /dev/null
+++ b/test/ts-demo/src/car.ts
@@ -0,0 +1,9 @@
+interface Driveable {
+	drive(distance: number): boolean;
+}
+
+export default class Car implements Driveable {
+	public drive(distance: number): boolean {
+		return true;
+	}
+}
diff --git a/test/ts-demo/src/index.ts b/test/ts-demo/src/index.ts
new file mode 100644
index 0000000..bd5f5df
--- /dev/null
+++ b/test/ts-demo/src/index.ts
@@ -0,0 +1,5 @@
+import Car from './car';
+
+let Ferrari = new Car();
+
+export default Ferrari;