diff --git a/library/Rules/KeySet.php b/library/Rules/KeySet.php
index e50fd4d4..d5f2e02e 100644
--- a/library/Rules/KeySet.php
+++ b/library/Rules/KeySet.php
@@ -43,7 +43,7 @@ final class KeySet extends AbstractWrapper
     /**
      * Initializes the rule.
      *
-     * @param Validatable[] ...$validatables
+     * @param Validatable ...$validatables
      */
     public function __construct(Validatable ...$validatables)
     {