diff --git a/examples/OOPStyle/ExampleOOPPort.php b/examples/OOPStyle/ExampleOOPPort.php
index b45b5dc..3b6d81f 100644
--- a/examples/OOPStyle/ExampleOOPPort.php
+++ b/examples/OOPStyle/ExampleOOPPort.php
@@ -68,7 +68,7 @@ public function applyEvent($aggregate, $customEvent): void
     public function serializeAggregate($aggregate): array
     {
         //Duck typing, do not do this in production but rather use your own interfaces
-        $aggregate->toArray();
+        return $aggregate->toArray();
     }
 
     /**