diff --git a/Command/LoadDataFixturesDoctrineCommand.php b/Command/LoadDataFixturesDoctrineCommand.php
index 87f76044..0489a6f4 100644
--- a/Command/LoadDataFixturesDoctrineCommand.php
+++ b/Command/LoadDataFixturesDoctrineCommand.php
@@ -105,7 +105,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
             $em->getConnection()->connect($input->getOption('shard'));
         }
 
-        $groups   = $input->getOption('group');
+        $groups   = (array) $input->getOption('group');
         $fixtures = $this->fixturesLoader->getFixtures($groups);
         if (! $fixtures) {
             $message = 'Could not find any fixture services to load';