diff --git a/src/Language/Visitor.php b/src/Language/Visitor.php
index bab8079..94c83e7 100644
--- a/src/Language/Visitor.php
+++ b/src/Language/Visitor.php
@@ -263,7 +263,7 @@ class Visitor
                 $visitFn = self::getVisitFn($visitor, $node->kind, $isLeaving);
 
                 if ($visitFn) {
-                    $result = call_user_func($visitFn, $node, $key, $parent, $path, $ancestors);
+                    $result    = call_user_func($visitFn, $node, $key, $parent, $path, $ancestors);
                     $editValue = null;
 
                     if ($result !== null) {
diff --git a/src/Validator/Rules/KnownDirectives.php b/src/Validator/Rules/KnownDirectives.php
index a1b9fe5..e9a0b8c 100644
--- a/src/Validator/Rules/KnownDirectives.php
+++ b/src/Validator/Rules/KnownDirectives.php
@@ -61,7 +61,7 @@ class KnownDirectives extends ValidationRule
     }
 
     /**
-     * @param Node[]|NodeList[] $ancestors
+     * @param Node[]|NodeList[] $ancestors The type is actually (Node|NodeList)[] but this PSR-5 syntax is so far not supported by most of the tools
      *
      * @return string
      */