diff --git a/gulp-uglify/gulp-uglify-tests.ts b/gulp-uglify/gulp-uglify-tests.ts
new file mode 100644
index 0000000000..e4f1f0d8a0
--- /dev/null
+++ b/gulp-uglify/gulp-uglify-tests.ts
@@ -0,0 +1,24 @@
+/// <reference path="./gulp-uglify.d.ts"/>
+/// <reference path="../gulp/gulp.d.ts"/>
+import gulp = require("gulp");
+import uglify = require("gulp-uglify");
+
+
+gulp.task('compress', function() {
+    var tsResult = gulp.src('lib/*.ts')
+        .pipe(uglify())
+        .pipe(gulp.dest('dist'));
+});
+
+gulp.task('compress2', function() {
+    var tsResult = gulp.src('lib/*.ts')
+        .pipe(uglify({
+            mangle: false,
+            preserverComments: "some",
+            compress: false,
+            output: {
+                max_line_len: 300
+            }
+        }))
+        .pipe(gulp.dest('dist'));
+});
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diff --git a/gulp-uglify/gulp-uglify.d.ts b/gulp-uglify/gulp-uglify.d.ts
new file mode 100644
index 0000000000..28ad91b93d
--- /dev/null
+++ b/gulp-uglify/gulp-uglify.d.ts
@@ -0,0 +1,128 @@
+// Type definitions for gulp-uglify
+// Project: https://github.com/terinjokes/gulp-uglify
+// Definitions by: Christopher Haws <https://github.com/ChristopherHaws/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts"/>
+
+declare module "gulp-uglify" {
+    function GulpUglify(options?: IGulpUglifyOptions): NodeJS.ReadWriteStream;
+
+    interface IGulpUglifyOptions {
+        /**
+         * Pass false to skip mangling names.
+         */
+        mangle?: boolean;
+
+        /**
+         * Pass if you wish to specify additional output options. The defaults are optimized for best compression.
+         */
+        output?: IOutputOptions;
+
+        /**
+         * Pass an object to specify custom compressor options. Pass false to skip compression completely.
+         */
+        compress?: boolean;
+
+        /**
+         * A convenience option for options.output.comments. Defaults to preserving no comments.
+         * all - Preserve all comments in code blocks
+         * some - Preserve comments that start with a bang (!) or include a Closure Compiler directive (@preserve, @license, @cc_on)
+         * function - Specify your own comment preservation function. You will be passed the current node and the current comment and are expected to return either true or false.
+         */
+        preserverComments?: string|((node, comment) => boolean);
+    }
+
+    interface IOutputOptions {
+        /**
+         * Start indentation on every line (only when `beautify`)
+         */
+        indent_start?: number;
+
+        /**
+         * Indentation level (only when `beautify`)
+         */
+        indent_level?: number;
+
+        /**
+         * Quote all keys in object literals?
+         */
+        quote_keys?: boolean;
+
+        /**
+         * Add a space after colon signs?
+         */
+        space_colon?: boolean;
+
+        /**
+         * Output ASCII-safe? (encodes Unicode characters as ASCII)
+         */
+        ascii_only?: boolean;
+
+        /**
+         * Escape "</script"?
+         */
+        inline_script?: boolean;
+
+        /**
+         * Informative maximum line width (for beautified output)
+         */
+        width?: number;
+
+        /**
+         * Maximum line length (for non-beautified output)
+         */
+        max_line_len?: number;
+
+        /**
+         * Output IE-safe code?
+         */
+        ie_proof?: boolean;
+
+        /**
+         * Beautify output?
+         */
+        beautify?: boolean;
+
+        /**
+         * Output a source map
+         */
+        source_map?: ISourceMapOptions;
+
+        /**
+         * Use brackets every time?
+         */
+        bracketize?: boolean;
+
+        /**
+         * Output comments?
+         */
+        comments?: boolean;
+
+        /**
+         * Use semicolons to separate statements? (otherwise, newlines)
+         */
+        semicolons?: boolean;
+    }
+
+    interface ISourceMapOptions {
+        /**
+         * The compressed file name
+         */
+        file?: string;
+        /**
+         * The root URL to the original sources
+         */
+        root?: string;
+
+        /**
+         * The input source map.
+         * Useful when you compress code that was generated from some other source (possibly other programming language).
+         * If you have an input source map, pass it in this argument and UglifyJS will generate a mapping that maps back
+         * to the original source (as opposed to the compiled code that you are compressing).
+         */
+        orig? :Object|JSON;
+    }
+
+    export = GulpUglify;
+}
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