diff --git a/src/Command/Scheduler/PruneCommand.php b/src/Command/Scheduler/PruneCommand.php
index 7e26126..d161f5a 100644
--- a/src/Command/Scheduler/PruneCommand.php
+++ b/src/Command/Scheduler/PruneCommand.php
@@ -2,7 +2,7 @@
 
 namespace Glooby\TaskBundle\Command\Scheduler;
 
-use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
+use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -11,7 +11,7 @@
 /**
  * @author Emil Kilhage
  */
-class PruneCommand extends ContainerAwareCommand
+class PruneCommand extends Command
 {
     private $container;
 
@@ -41,5 +41,8 @@ protected function execute(InputInterface $input, OutputInterface $output)
         } else {
             $pruner->run();
         }
+
+        // TODO add logging (example if an error occurs) - and return zero
+        return 1;
     }
 }
diff --git a/src/Command/Scheduler/RunCommand.php b/src/Command/Scheduler/RunCommand.php
index c18da33..6c40053 100644
--- a/src/Command/Scheduler/RunCommand.php
+++ b/src/Command/Scheduler/RunCommand.php
@@ -2,7 +2,7 @@
 
 namespace Glooby\TaskBundle\Command\Scheduler;
 
-use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
+use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -10,7 +10,7 @@
 /**
  * @author Emil Kilhage
  */
-class RunCommand extends ContainerAwareCommand
+class RunCommand extends Command
 {
     private $container;
 
@@ -41,5 +41,8 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
         $scheduler = $this->container->get('glooby_task.queue_scheduler');
         $scheduler->schedule();
+
+        // TODO add logging (example if an error occurs) - and return zero
+        return 1;
     }
 }
diff --git a/src/Command/Scheduler/SyncCommand.php b/src/Command/Scheduler/SyncCommand.php
index 2bc43cd..a38c407 100644
--- a/src/Command/Scheduler/SyncCommand.php
+++ b/src/Command/Scheduler/SyncCommand.php
@@ -2,7 +2,7 @@
 
 namespace Glooby\TaskBundle\Command\Scheduler;
 
-use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
+use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -11,7 +11,7 @@
 /**
  * @author Emil Kilhage
  */
-class SyncCommand extends ContainerAwareCommand
+class SyncCommand extends Command
 {
     private $container;
 
@@ -38,5 +38,8 @@ protected function execute(InputInterface $input, OutputInterface $output)
         $client = $this->container->get('glooby_task.schedule_synchronizer');
         $client->setForce($input->getOption('force'));
         $client->sync();
+
+        // TODO add logging (example if an error occurs) - and return zero
+        return 1;
     }
 }
diff --git a/src/Command/Task/RunCommand.php b/src/Command/Task/RunCommand.php
index 04b955d..3d12fdd 100644
--- a/src/Command/Task/RunCommand.php
+++ b/src/Command/Task/RunCommand.php
@@ -60,6 +60,8 @@ protected function execute(InputInterface $input, OutputInterface $output)
                 $output->writeln($response);
             }
         }
+
+        return 1;
     }
 
     /**