diff --git a/rector.php b/rector.php
index 5ad4b8e77..c80d86e9a 100644
--- a/rector.php
+++ b/rector.php
@@ -4,7 +4,6 @@
 
 use Rector\CodeQuality\Rector\Class_\InlineConstructorDefaultToPropertyRector;
 use Rector\Config\RectorConfig;
-use Rector\Php56\Rector\FunctionLike\AddDefaultValueForUndefinedVariableRector;
 use Rector\Php73\Rector\FuncCall\JsonThrowOnErrorRector;
 use Rector\Php74\Rector\Closure\ClosureToArrowFunctionRector;
 use Rector\Set\ValueObject\LevelSetList;
@@ -25,7 +24,6 @@
 
     $rectorConfig->skip([
         ClosureToArrowFunctionRector::class,
-        AddDefaultValueForUndefinedVariableRector::class,
         JsonThrowOnErrorRector::class,
     ]);
 };