diff --git a/src/Behat/MinkExtension/Extension.php b/src/Behat/MinkExtension/Extension.php
index 7ab7eee..7f0e75e 100644
--- a/src/Behat/MinkExtension/Extension.php
+++ b/src/Behat/MinkExtension/Extension.php
@@ -104,6 +104,9 @@ class Extension implements ExtensionInterface
         }
         $container->setParameter('behat.mink.parameters', $minkParameters);
 
+        if (isset($config['base_url')) {
+            $container->setParameter('behat.mink.base_url', $config['base_url']);
+        }
         $container->setParameter('behat.mink.default_session', $config['default_session']);
         $container->setParameter('behat.mink.javascript_session', $config['javascript_session']);
         $container->setParameter('behat.mink.browser_name', $config['browser_name']);