diff --git a/.config/trusteddomains.config.php b/.config/trusteddomains.config.php
new file mode 100644
index 00000000..5994628b
--- /dev/null
+++ b/.config/trusteddomains.config.php
@@ -0,0 +1,11 @@
+<?php
+
+if (getenv('NEXTCLOUD_TRUSTED_DOMAINS')) {
+  // Get originaly configured values
+  include(__DIR__.'/config.php');
+
+  // Add environment variables
+  $CONFIG = array(
+    'trusted_domains' => array_merge($CONFIG['trusted_domains'],array_map(function($domain){return trim($domain);},explode(",",getenv('NEXTCLOUD_TRUSTED_DOMAINS'))))
+  );
+}