diff --git a/AddOn/Calender_Office365_User/config.php b/AddOn/Calender_Office365_User/config.php
index 5003cd24..c3a8c63b 100644
--- a/AddOn/Calender_Office365_User/config.php
+++ b/AddOn/Calender_Office365_User/config.php
@@ -2,7 +2,7 @@
 return [
     'client_id' => '<Application ID (Client ID)>',
     'client_secret' => '<Cleint Secret Geheimnise / Zertifikate Wert>',
-    'redirect_uri' => 'https://servicebericht.isgus.de/calsync/callback.php',
+    'redirect_uri' => '<URL-Webpage>/callback.php',
     'scopes' => 'offline_access user.read calendars.readwrite',
     'auth_url' => 'https://login.microsoftonline.com/common/oauth2/v2.0/authorize',
     'token_url' => 'https://login.microsoftonline.com/common/oauth2/v2.0/token',