diff --git a/src/Type/Type.php b/src/Type/Type.php
index 97c48ba10..65730d903 100644
--- a/src/Type/Type.php
+++ b/src/Type/Type.php
@@ -7,7 +7,7 @@
 /**
  * @internal
  *
- * @phpstan-type TypeArray array{name: string, params: array}
+ * @phpstan-type TypeArray array{name: string, params?: array}
  */
 final class Type
 {