diff --git a/README.md b/README.md
index 34124ec..27c4551 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Probot
 
-[![npm version](https://img.shields.io/npm/v/probot.svg)](https://www.npmjs.com/package/probot) [![Build Status](https://travis-ci.org/probot/probot.svg?branch=master)](https://travis-ci.org/probot/probot) [![Greenkeeper badge](https://badges.greenkeeper.io/probot/probot.svg)](https://greenkeeper.io/) [![The Changelog #264](https://img.shields.io/badge/The%20Changelog-%23264-61c192.svg)](https://changelog.com/podcast/264)
+[![npm version](https://img.shields.io/npm/v/probot.svg)](https://www.npmjs.com/package/probot) [![Build Status](https://travis-ci.org/probot/probot.svg?branch=master)](https://travis-ci.org/probot/probot) [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/32r7s2skrgm9ubva?svg=true)](https://ci.appveyor.com/api/projects/status/32r7s2skrgm9ubva?svg=true) [![Greenkeeper badge](https://badges.greenkeeper.io/probot/probot.svg)](https://greenkeeper.io/) [![The Changelog #264](https://img.shields.io/badge/The%20Changelog-%23264-61c192.svg)](https://changelog.com/podcast/264)
 
 If you've ever thought, "wouldn't it be cool if GitHub could…"; imma stop you right there. Most features can actually be added via [GitHub Apps](https://developer.github.com/apps/), which extend GitHub and can be installed directly on organizations and user accounts and granted access to specific repositories. They come with granular permissions and built-in webhooks. Apps are first class actors within GitHub.
 
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000..4ed9740
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,21 @@
+# Test against the latest version of this Node.js version
+environment:
+  nodejs_version: "8"
+
+# Install scripts. (runs after repo cloning)
+install:
+  # Get the latest stable version of Node.js or io.js
+  - ps: Install-Product node $env:nodejs_version
+  # install modules
+  - npm install
+
+# Post-install test scripts.
+test_script:
+  # Output useful info for debugging.
+  - node --version
+  - npm --version
+  # run tests
+  - npm test
+
+# Don't actually build.
+build: off