diff --git a/Classes/Domain/Model/ServerConfiguration.php b/Classes/Domain/Model/ServerConfiguration.php
index 944a8c1..ff1abdd 100755
--- a/Classes/Domain/Model/ServerConfiguration.php
+++ b/Classes/Domain/Model/ServerConfiguration.php
@@ -75,10 +75,10 @@ public function __toString(): string
     }
 
     /**
-     * @return string
+     * @return mixed
      * phpcs:disable
      */
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return $this->__toString();
     }