diff --git a/src/Deblan/Command/CheckCommand.php b/src/Deblan/Command/CheckCommand.php
index 1310667..c81f669 100644
--- a/src/Deblan/Command/CheckCommand.php
+++ b/src/Deblan/Command/CheckCommand.php
@@ -44,8 +44,8 @@ class CheckCommand extends BaseCommand
     {
         $this
             ->setName('check')
-            ->addArgument('domains', InputArgument::IS_ARRAY|InputArgument::REQUIRED, 'List of domains.')
-            ->setHelp(<<<EOF
+            ->addArgument('domains', InputArgument::IS_ARRAY | InputArgument::REQUIRED, 'List of domains.')
+            ->setHelp(<<<'EOF'
 The <info>%command.name%</info> retrieves the expiration dates of the given domains.
 
 Example: %command.full_name% example.com other-example.com