diff --git a/src/Command/ClearLastImportLogCommand.php b/src/Command/ClearLastImportLogCommand.php
index 75ee212..a65d30f 100644
--- a/src/Command/ClearLastImportLogCommand.php
+++ b/src/Command/ClearLastImportLogCommand.php
@@ -5,6 +5,7 @@
 use Jh\Import\Config\Data;
 use Jh\Import\Entity\ImportHistoryResource;
 use Magento\Framework\App\ResourceConnection;
+use Magento\Framework\Console\Cli;
 use Magento\Framework\DB\Adapter\AdapterInterface;
 use Magento\Framework\View\Element\UiComponent\DataProvider\CollectionFactory;
 use Symfony\Component\Console\Command\Command;
@@ -84,5 +85,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
                 $importName
             )
         );
+
+        return Cli::RETURN_SUCCESS;
     }
 }
diff --git a/src/Command/ListImportsCommand.php b/src/Command/ListImportsCommand.php
index 09eefbc..10ea90f 100644
--- a/src/Command/ListImportsCommand.php
+++ b/src/Command/ListImportsCommand.php
@@ -5,6 +5,7 @@
 use Jh\Import\Config\Data;
 use Jh\Import\Locker\Locker;
 use Magento\Cron\Model\Config;
+use Magento\Framework\Console\Cli;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Helper\Table;
 use Symfony\Component\Console\Input\InputArgument;
@@ -78,5 +79,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
             ->render();
 
         $output->writeln('');
+
+        return Cli::RETURN_SUCCESS;
     }
 }
diff --git a/src/Command/UnlockImportCommand.php b/src/Command/UnlockImportCommand.php
index 60d6c10..b2a29f6 100644
--- a/src/Command/UnlockImportCommand.php
+++ b/src/Command/UnlockImportCommand.php
@@ -4,6 +4,7 @@
 
 use Jh\Import\Config\Data;
 use Jh\Import\Locker\Locker;
+use Magento\Framework\Console\Cli;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
@@ -54,5 +55,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
         $this->locker->release($importName);
         $output->writeln(sprintf('<info>The lock for import: "%s" has been released</info>', $importName));
+
+        return Cli::RETURN_SUCCESS;
     }
 }
diff --git a/src/Command/ViewLocksCommand.php b/src/Command/ViewLocksCommand.php
index 436686a..581b60f 100644
--- a/src/Command/ViewLocksCommand.php
+++ b/src/Command/ViewLocksCommand.php
@@ -4,6 +4,7 @@
 
 use Jh\Import\Config\Data;
 use Jh\Import\Locker\Locker;
+use Magento\Framework\Console\Cli;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Helper\Table;
 use Symfony\Component\Console\Input\InputInterface;
@@ -63,5 +64,7 @@ function (string $importName) {
             ->render();
 
         $output->writeln('');
+
+        return Cli::RETURN_SUCCESS;
     }
 }
diff --git a/src/Command/ViewLogsCommand.php b/src/Command/ViewLogsCommand.php
index 614351a..0134ef8 100644
--- a/src/Command/ViewLogsCommand.php
+++ b/src/Command/ViewLogsCommand.php
@@ -3,6 +3,7 @@
 namespace Jh\Import\Command;
 
 use Jh\Import\Config\Data;
+use Magento\Framework\Console\Cli;
 use Magento\Framework\View\Element\UiComponent\DataProvider\CollectionFactory;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Helper\Table;
@@ -122,5 +123,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
                 ];
             }, $itemLogCollection->getItems()))
             ->render();
+        
+        return Cli::RETURN_SUCCESS;
     }
 }