diff --git a/log4js/log4js-tests.ts b/log4js/log4js-tests.ts
new file mode 100644
index 0000000000..e18ad78622
--- /dev/null
+++ b/log4js/log4js-tests.ts
@@ -0,0 +1,27 @@
+/// <reference path="./log4js.d.ts" />
+import log4js = require('log4js');
+
+log4js.addAppender(log4js.appenders.file('logs/cheese.log'), 'cheese');
+
+var logger = log4js.getLogger('cheese');
+logger.setLevel('ERROR');
+
+logger.trace('Entering cheese testing');
+logger.debug('Got cheese.');
+logger.info('Cheese is Gouda.');
+logger.warn('Cheese is quite smelly.');
+logger.error('Cheese is too ripe!');
+logger.fatal('Cheese was breeding ground for listeria.');
+
+var cb = () => {};
+log4js.shutdown(cb);
+
+log4js.configure({
+  appenders: [
+    { type: 'console' },
+    { type: 'file', filename: 'logs/cheese.log', category: 'cheese' }
+  ]
+});
+
+var defaultLogger = log4js.getDefaultLogger();
+defaultLogger.debug('Got cheese.');
diff --git a/log4js/log4js.d.ts b/log4js/log4js.d.ts
new file mode 100644
index 0000000000..869a10c58d
--- /dev/null
+++ b/log4js/log4js.d.ts
@@ -0,0 +1,57 @@
+// Type definitions for log4js
+// Project: https://github.com/nomiddlename/log4js-node
+// Definitions by: Kentaro Okuno <http://github.com/armorik83>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module "log4js" {
+  /**
+   * Get a logger instance. Instance is cached on categoryName level.
+   *
+   * @param   {String} [categoryName] name of category to log to.
+   * @returns {Logger} instance of logger for the category
+   * @static
+   */
+  export function getLogger(categoryName?: string): Logger;
+
+  /**
+   * Get the default logger instance.
+   * @returns {Logger} instance of default logger
+   * @static
+   */
+  export function getDefaultLogger(): Logger;
+
+  /**
+   * args are appender, then zero or more categories
+   *
+   * @param   {*[]} appenders
+   * @returns {void}
+   * @static
+   */
+  export function addAppender(...appenders: any[]): void;
+
+  /**
+   * Shutdown all log appenders. This will first disable all writing to appenders
+   * and then call the shutdown function each appender.
+   *
+   * @params  {Function} cb - The callback to be invoked once all appenders have
+   *  shutdown. If an error occurs, the callback will be given the error object
+   *  as the first argument.
+   * @returns {void}
+   */
+  export function shutdown(cb: Function): void;
+
+  export function configure(config: any, options?: any): void;
+
+  export var appenders: any;
+
+  export interface Logger {
+    setLevel(level: string): void;
+
+    trace(message: string): void;
+    debug(message: string): void;
+    info(message: string): void;
+    warn(message: string): void;
+    error(message: string): void;
+    fatal(message: string): void;
+  }
+}