diff --git a/src/Worker/SupervisorWorker.php b/src/Worker/SupervisorWorker.php
index 3ad06f9..5ad6053 100644
--- a/src/Worker/SupervisorWorker.php
+++ b/src/Worker/SupervisorWorker.php
@@ -8,7 +8,7 @@
 use CrazyGoat\WorkermanBundle\Supervisor\ProcessHandler;
 use Workerman\Worker;
 
-final readonly class SupervisorWorker
+readonly class SupervisorWorker
 {
     private const PROCESS_TITLE = '[Process]';
 
@@ -27,11 +27,14 @@ public function __construct(KernelFactory $kernelFactory, ?string $user, ?string
             }
 
             $taskName = empty($serviceConfig['name']) ? $serviceId : $serviceConfig['name'];
+            assert(is_string($taskName));
+            $processes = $serviceConfig['processes'] ?? 1;
+            assert(is_int($processes));
             $worker = new Worker();
             $worker->name = self::PROCESS_TITLE;
             $worker->user = $user ?? '';
             $worker->group = $group ?? '';
-            $worker->count = $serviceConfig['processes'] ?? 1;
+            $worker->count = $processes;
             $worker->onWorkerStart = function (Worker $worker) use ($kernelFactory, $serviceId, $serviceConfig, $taskName): never {
                 $worker->log(sprintf('%s "%s" started', $worker->name, $taskName));
                 $kernel = $kernelFactory->createKernel();
@@ -39,9 +42,10 @@ public function __construct(KernelFactory $kernelFactory, ?string $user, ?string
                 /** @var ProcessHandler $handler */
                 $handler = $kernel->getContainer()->get('workerman.process_handler');
                 $method = empty($serviceConfig['method']) ? '__invoke' : $serviceConfig['method'];
+                assert(is_string($method));
                 $handler("$serviceId::$method", $taskName);
-                sleep(1);
-                exit;
+                $worker->log("Process \"$taskName\" (service: $serviceId::$method) finished unexpectedly");
+                exit(1);
             };
         }
     }