diff --git a/src/Symfony/Component/VarDumper/Caster/ReflectionCaster.php b/src/Symfony/Component/VarDumper/Caster/ReflectionCaster.php
index 1543bbfdfa003..bf1d2b9ef3f8c 100644
--- a/src/Symfony/Component/VarDumper/Caster/ReflectionCaster.php
+++ b/src/Symfony/Component/VarDumper/Caster/ReflectionCaster.php
@@ -323,6 +323,9 @@ private static function addExtra(&$a, \Reflector $c)
             $x['line'] = $c->getStartLine().' to '.$c->getEndLine();
         }
 
+        if (\PHP_VERSION_ID >= 80000) {
+            unset(self::$extraMap['isDisabled']);
+        }
         self::addMap($x, $c, self::$extraMap, '');
 
         if ($x) {