diff --git a/functions/config.js b/functions/config.js
index 5da71776..4ec6fbe9 100644
--- a/functions/config.js
+++ b/functions/config.js
@@ -33,8 +33,8 @@
  *
  **/
 module.exports = {
-  //userpass: 'user@foo.com:Password1',
-  host: '<YOUR-CLOUD-HOST>',
-  port: 443,
-  path: '/YOUR/REST/ENDPOINT'
+  //userpass: process.env.OH_USERPASS || 'user@foo.com:Password1',
+  host: process.env.OH_HOST || '<YOUR-CLOUD-HOST>',
+  port: process.env.OH_PORT || 443,
+  path: process.env.OH_PATH || '/YOUR/REST/ENDPOINT'
 };
diff --git a/package.json b/package.json
index 94486727..8eb522d7 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,11 @@
     "release-minor": "npm version minor -m \":bookmark: Release (minor): %s\"",
     "release-patch": "npm version patch -m \":bookmark: Release (patch): %s\""
   },
+  "jest": {
+    "setupFiles": [
+      "./tests/setenv.js"
+    ]
+  },
   "license": "EPL-2.0",
   "bugs": {
     "url": "https://github.com/openhab/openhab-google-assistant/issues"
diff --git a/testServer.js b/testServer.js
index 5cc0a022..357c5b2d 100644
--- a/testServer.js
+++ b/testServer.js
@@ -8,6 +8,7 @@ app.use('/', (req, res) => {
   openhabGA.openhabGoogleAssistant(req, res);
 });
 
-app.listen(3000, () => {
-  console.log('Server is listening on port 3000');
+const port = process.env.OH_SERVER_PORT || 3000;
+app.listen(port, () => {
+  console.log('Server is listening on port %s', port);
 });
diff --git a/tests/config.test.js b/tests/config.test.js
index 44af12c5..2f2a4968 100644
--- a/tests/config.test.js
+++ b/tests/config.test.js
@@ -1,7 +1,13 @@
 const Config = require('../functions/config.js');
 
 describe('Config', () => {
-  test('Config all properties', () => {
+  test('All properties available', () => {
     expect(Object.keys(Config)).toStrictEqual(['host', 'port', 'path']);
   });
+
+  test('Properties used from ENV', () => {
+    expect(Config.host).toBe('test.host');
+    expect(Config.port).toBe('1234');
+    expect(Config.path).toBe('/test/items');
+  });
 });
diff --git a/tests/setenv.js b/tests/setenv.js
new file mode 100644
index 00000000..2b97d385
--- /dev/null
+++ b/tests/setenv.js
@@ -0,0 +1,3 @@
+process.env.OH_HOST = 'test.host';
+process.env.OH_PORT = '1234';
+process.env.OH_PATH = '/test/items';