diff --git a/Command/HealthCheckCommand.php b/Command/HealthCheckCommand.php
index c3bbb4a5..48f3acee 100644
--- a/Command/HealthCheckCommand.php
+++ b/Command/HealthCheckCommand.php
@@ -24,7 +24,8 @@ protected function configure()
                 ),
                 new InputOption(
                     'reporter',
-                    InputOption::VALUE_IS_ARRAY,
+                    null,
+                    InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY,
                     'Additional reporters to run.',
                     array()
                 )