diff --git a/src/DocBlock/Tags/Factory/MethodParameterFactory.php b/src/DocBlock/Tags/Factory/MethodParameterFactory.php
index 1cccde9..6de2051 100644
--- a/src/DocBlock/Tags/Factory/MethodParameterFactory.php
+++ b/src/DocBlock/Tags/Factory/MethodParameterFactory.php
@@ -65,6 +65,10 @@ final class MethodParameterFactory
         return var_export($defaultValue, true);
     }
 
+    /**
+     * @param array<array, null, int, float, bool, string, object> $defaultValue
+     * @return string
+     */
     private function formatArray(array $defaultValue): string
     {
         $formatedValue = '[';