diff --git a/src/lib/DataCollector/TwigComponentCollector.php b/src/lib/DataCollector/TwigComponentCollector.php
index eef607b..6ee5165 100644
--- a/src/lib/DataCollector/TwigComponentCollector.php
+++ b/src/lib/DataCollector/TwigComponentCollector.php
@@ -12,6 +12,7 @@
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\DataCollector\DataCollector;
+use Throwable;
 
 final class TwigComponentCollector extends DataCollector
 {
@@ -33,7 +34,7 @@ public function addAvailableGroups(string $group): void
         $this->availableGroups[] = compact('group');
     }
 
-    public function collect(Request $request, Response $response, \Throwable $exception = null): void
+    public function collect(Request $request, Response $response, ?Throwable $exception = null): void
     {
         $this->data['rendered_components'] = $this->renderedComponents;
         $this->data['available_groups'] = $this->availableGroups;