diff --git a/src/Sqwack/Command/CronCommand.php b/src/Sqwack/Command/CronCommand.php
index 5a50cb0..8328aae 100644
--- a/src/Sqwack/Command/CronCommand.php
+++ b/src/Sqwack/Command/CronCommand.php
@@ -23,7 +23,7 @@ protected function configure()
 
     protected function execute(InputInterface $input, OutputInterface $output)
     {
-        $waitMinutes = $this->getOption('sleep');
+        $waitMinutes = $input->getOption('sleep');
         if (!$waitMinutes) {
             $waitMinutes = 3;
         }