diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php
index 3cfca24983347..22f2d41d68161 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php
@@ -292,7 +292,7 @@ protected function sortServiceIds(array $serviceIds)
      */
     public static function getClassDescription(string $class, string &$resolvedClass = null): string
     {
-        $resolvedClass = null;
+        $resolvedClass = $class;
 
         if (!interface_exists(DocBlockFactoryInterface::class)) {
             return '';