diff --git a/src/Behat/MinkExtension/Extension.php b/src/Behat/MinkExtension/Extension.php
index 7f0e75e..4d5dc4f 100644
--- a/src/Behat/MinkExtension/Extension.php
+++ b/src/Behat/MinkExtension/Extension.php
@@ -104,7 +104,7 @@ class Extension implements ExtensionInterface
         }
         $container->setParameter('behat.mink.parameters', $minkParameters);
 
-        if (isset($config['base_url')) {
+        if (isset($config['base_url'])) {
             $container->setParameter('behat.mink.base_url', $config['base_url']);
         }
         $container->setParameter('behat.mink.default_session', $config['default_session']);