diff --git a/Build/phpstan/phpstan-baseline.neon b/Build/phpstan/phpstan-baseline.neon
index cc5b93e3882e..e687132c7f95 100644
--- a/Build/phpstan/phpstan-baseline.neon
+++ b/Build/phpstan/phpstan-baseline.neon
@@ -1380,11 +1380,6 @@ parameters:
 			count: 5
 			path: ../../typo3/sysext/core/Classes/Database/SoftReferenceIndex.php
 
-		-
-			message: "#^Call to an undefined method ReflectionType\\:\\:getName\\(\\)\\.$#"
-			count: 1
-			path: ../../typo3/sysext/core/Classes/DependencyInjection/ListenerProviderPass.php
-
 		-
 			message: "#^Call to an undefined method ReflectionClass\\:\\:getAttributes\\(\\)\\.$#"
 			count: 1
diff --git a/typo3/sysext/core/Classes/DependencyInjection/ListenerProviderPass.php b/typo3/sysext/core/Classes/DependencyInjection/ListenerProviderPass.php
index 5228ab075a0f..ca5f63656458 100644
--- a/typo3/sysext/core/Classes/DependencyInjection/ListenerProviderPass.php
+++ b/typo3/sysext/core/Classes/DependencyInjection/ListenerProviderPass.php
@@ -117,7 +117,7 @@ protected function getParameterType(string $serviceName, Definition $definition,
             }
             $params = $this->getReflectionMethod($serviceName, $definition, $method)->getParameters();
             $rType = count($params) ? $params[0]->getType() : null;
-            if ($rType === null) {
+            if (!$rType instanceof \ReflectionNamedType) {
                 throw new \InvalidArgumentException(
                     sprintf('Service "%s" registers method "%s" as an event listener, but does not specify an event type and the method does not type a parameter. Declare a class type for the method parameter or specify an event class explicitly', $serviceName, $method),
                     1623881315,