diff --git a/src/Model/Tree/TreeNodeMethodsTrait.php b/src/Model/Tree/TreeNodeMethodsTrait.php
index e195838f..0bbc9342 100644
--- a/src/Model/Tree/TreeNodeMethodsTrait.php
+++ b/src/Model/Tree/TreeNodeMethodsTrait.php
@@ -268,10 +268,7 @@ public function offsetUnset(mixed $offset): void
         unset($this->getChildNodes()[$offset]);
     }
 
-    /**
-     * @return mixed
-     */
-    public function offsetGet(mixed $offset)
+    public function offsetGet(mixed $offset): mixed
     {
         return $this->getChildNodes()[$offset];
     }