diff --git a/components/console/helpers/questionhelper.rst b/components/console/helpers/questionhelper.rst
index d6cdb7c67ab..664f1b0d1df 100644
--- a/components/console/helpers/questionhelper.rst
+++ b/components/console/helpers/questionhelper.rst
@@ -384,6 +384,9 @@ You can also use a validator with a hidden question::
$helper = $this->getHelper('question');
$question = new Question('Please enter your password');
+ $question->setNormalizer(function ($value) {
+ return null === $value ? '' : $value;
+ });
$question->setValidator(function ($value) {
if (trim($value) == '') {
throw new \Exception('The password cannot be empty');
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