diff --git a/README.md b/README.md
index c3664d6cca5c15745a61dfbdc06a5d6f438208a4..305e6baac43c2e39dfb0c6385c0ad4286e4520c5 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Simple Config with ENV Support.
 ## Usage
 
 `const Config = require('@plastdev/config')`  
-`let config = new Config()`
+`let config = new Config([basePath])`
 
 Then config is your config object. (Use it like config.setting)
 
@@ -28,6 +28,9 @@ You may use the function _reload()_ to reload the config from all sources.
 
 This makes *reload* a reserved keyword
 
+If you give a basePath, the config-Files are used from there.  
+Else the main dir of the application will be used.
+
 ## Examples
 
 ### Only config.defaults.json
diff --git a/index.d.ts b/index.d.ts
index 52fd8ac46c4dd02875b7c70d06bd44cd2efaec49..ee4d70d3c96ebc083b340f8d2fc967fe1c06f822 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1 +1,8 @@
-declare module 'config';
\ No newline at end of file
+export as namespace Config;
+
+export = Config;
+
+declare class Config {
+    constructor();
+    reload(): void;
+}
\ No newline at end of file
diff --git a/index.js b/index.js
index 049096bdeb52afca14211056c8ff6b53eda1cc97..28a68138464ddf4e44c1581c7fea516a31d7a596 100644
--- a/index.js
+++ b/index.js
@@ -2,10 +2,17 @@ var fs = require('fs')
 var path = require('path')
 var merge = require('lodash.merge')
 
-module.exports = function() {
-  let configDefaults = path.join(path.dirname(require.main.filename), 'config.defaults.json')
-  let configLocal = path.join(path.dirname(require.main.filename), 'config.json')
-  
+module.exports = function(basePath = undefined) {
+  let configDefaults
+  let configLocal
+  if (basePath) {
+    configDefaults = path.join(basePath, 'config.defaults.json')
+    configLocal = path.join(basePath, 'config.json')
+  } else {
+    configDefaults = path.join(path.dirname(require.main.filename), 'config.defaults.json')
+    configLocal = path.join(path.dirname(require.main.filename), 'config.json')
+  }
+
   let config = {}
   
   const objectDeepKeys = function (obj) {