diff --git a/src/Symfony/Component/Console/Helper/QuestionHelper.php b/src/Symfony/Component/Console/Helper/QuestionHelper.php
index 40709cedd929d..594a291602305 100644
--- a/src/Symfony/Component/Console/Helper/QuestionHelper.php
+++ b/src/Symfony/Component/Console/Helper/QuestionHelper.php
@@ -177,11 +177,9 @@ protected function writePrompt(OutputInterface $output, Question $question)
     }
 
     /**
-     * @param string $tag
-     *
      * @return string[]
      */
-    protected function formatChoiceQuestionChoices(ChoiceQuestion $question, $tag)
+    protected function formatChoiceQuestionChoices(ChoiceQuestion $question, string $tag)
     {
         $messages = [];