diff --git a/koa-compress/koa-compress-tests.ts b/koa-compress/koa-compress-tests.ts
new file mode 100644
index 0000000000..564fd53e2c
--- /dev/null
+++ b/koa-compress/koa-compress-tests.ts
@@ -0,0 +1,16 @@
+/// <reference path="../koa/koa.d.ts" />
+/// <reference path="koa-compress.d.ts" />
+
+import * as Koa from "koa";
+import compress = require("koa-compress");
+
+const app = new Koa();
+
+app.use(compress({
+    filter: (ctype) => {
+        return /text/i.test(ctype)
+    },
+    threshold: 2048
+}));
+
+app.listen(80)
\ No newline at end of file
diff --git a/koa-compress/koa-compress.d.ts b/koa-compress/koa-compress.d.ts
new file mode 100644
index 0000000000..3a6b7e09e1
--- /dev/null
+++ b/koa-compress/koa-compress.d.ts
@@ -0,0 +1,41 @@
+// Type definitions for koa-compress v2.x
+// Project: https://github.com/koajs/compress
+// Definitions by: Jerry Chin <https://github.com/hellopao/>
+// Definitions: https://github.com/hellopao/DefinitelyTyped
+
+/* =================== USAGE ===================
+
+    import compress = require("koa-compress");
+    var Koa = require('koa');
+
+    var app = new Koa();
+    app.use(compress());
+
+ =============================================== */
+/// <reference path="../node/node.d.ts" />
+/// <reference path="../koa/koa.d.ts" />
+
+declare module "koa-compress" {
+
+    import * as Koa from "koa";
+    import * as zlib from "zlib";
+
+    interface ICompressOptions extends zlib.ZlibOptions {
+        /**
+         * An optional function that checks the response content type to decide whether to compress. By default, it uses compressible.
+         */
+        filter?: (content_type: string) => boolean;
+
+        /**
+         * Minimum response size in bytes to compress. Default 1024 bytes or 1kb.
+         */
+        threshold?: number
+    }
+    
+    /**
+     * Compress middleware for Koa
+     */
+    function compress(options?: ICompressOptions): { (ctx: Koa.Context, next?: () => any): any };
+
+    export = compress;
+}