diff --git a/src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php b/src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
index 77130f9776..dc2141e99f 100644
--- a/src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
+++ b/src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
@@ -32,7 +32,7 @@ class SymfonyQuestionHelper extends QuestionHelper
     {
         $validator = $question->getValidator();
         $question->setValidator(function ($value) use ($validator) {
-            if (null !== $validator && is_callable($validator)) {
+            if (null !== $validator) {
                 $value = $validator($value);
             }