diff --git a/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php b/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php
index 8fa94fae4fcb2..defa1a4385b64 100644
--- a/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php
+++ b/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php
@@ -173,7 +173,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
             $this->eventDispatcher->addSubscriber(new StopWorkerOnMemoryLimitListener($this->convertToBytes($memoryLimit), $this->logger));
         }
 
-        if ($timeLimit = $input->getOption('time-limit')) {
+        if (null !== ($timeLimit = $input->getOption('time-limit'))) {
             $stopsWhen[] = "been running for {$timeLimit}s";
             $this->eventDispatcher->addSubscriber(new StopWorkerOnTimeLimitListener($timeLimit, $this->logger));
         }