diff --git a/src/Psl/Result/Success.php b/src/Psl/Result/Success.php
index c6b3f622..a2846b77 100644
--- a/src/Psl/Result/Success.php
+++ b/src/Psl/Result/Success.php
@@ -47,11 +47,11 @@ public function getResult(): mixed
     /**
      * Unwrap the Result if it is succeeded or return $default value.
      *
-     * @param D $default
+     * @template D
      *
-     * @return T|D
+     * @param D $default
      *
-     * @template D
+     * @return T
      */
     public function unwrapOr(mixed $default): mixed
     {