diff --git a/src/Symfony/Bundle/WebServerBundle/Command/ServerStartCommand.php b/src/Symfony/Bundle/WebServerBundle/Command/ServerStartCommand.php
index 50ceed8f82..0c0f8625c5 100644
--- a/src/Symfony/Bundle/WebServerBundle/Command/ServerStartCommand.php
+++ b/src/Symfony/Bundle/WebServerBundle/Command/ServerStartCommand.php
@@ -135,7 +135,7 @@ EOF
         try {
             $server = new WebServer();
             if ($server->isRunning($input->getOption('pidfile'))) {
-                $io->warning(sprintf('The web server has already been started. It is currently listening on http://%s. Please stop the web server before you try to start it again.', $server->getAddress($input->getOption('pidfile'))));
+                $io->error(sprintf('The web server has already been started. It is currently listening on http://%s. Please stop the web server before you try to start it again.', $server->getAddress($input->getOption('pidfile'))));
 
                 return 1;
             }