diff --git a/autoload/functions_oxDIC.php b/autoload/functions_oxDIC.php
new file mode 100644
index 0000000..dce0f68
--- /dev/null
+++ b/autoload/functions_oxDIC.php
@@ -0,0 +1,25 @@
+<?php
+
+/**
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <support@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
+declare(strict_types=1);
+
+use D3\DIContainerHandler\d3DicHandler;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+
+/**
+ * @return   ContainerBuilder
+ */
+function d3GetOxidDIC(): ContainerBuilder
+{
+    return d3DicHandler::getInstance();
+}
diff --git a/composer.json b/composer.json
index ef3cd3a..16a96e1 100644
--- a/composer.json
+++ b/composer.json
@@ -27,6 +27,9 @@
   "autoload": {
     "psr-4": {
       "D3\\DIContainerHandler\\": "./"
-    }
+    },
+    "files": [
+      "autoload/functions_oxDIC.php"
+    ]
   }
 }