diff --git a/src/Validator/Constraints/IsTrue.php b/src/Validator/Constraints/IsTrue.php
index eb43f6d..1e0d0f4 100644
--- a/src/Validator/Constraints/IsTrue.php
+++ b/src/Validator/Constraints/IsTrue.php
@@ -24,7 +24,7 @@ public function __construct(array $options = null, string $message = null, strin
     }
 
     /**
-     * {@inheritdoc}
+     * @return string|string[]
      */
     public function getTargets()
     {