diff --git a/src/Behat/MinkExtension/ServiceContainer/Driver/BrowserStackFactory.php b/src/Behat/MinkExtension/ServiceContainer/Driver/BrowserStackFactory.php
index 66aa3fa7..3138e612 100644
--- a/src/Behat/MinkExtension/ServiceContainer/Driver/BrowserStackFactory.php
+++ b/src/Behat/MinkExtension/ServiceContainer/Driver/BrowserStackFactory.php
@@ -58,11 +58,15 @@ protected function getCapabilitiesNode()
                 ->scalarNode('build')->info('will be set automatically based on the TRAVIS_JOB_NUMBER environment variable if available')->end()
                 ->scalarNode('os')->end()
                 ->scalarNode('os_version')->end()
+		->scalarNode('browser_version')->end()
                 ->scalarNode('device')->end()
                 ->booleanNode('browserstack-debug')->end()
                 ->booleanNode('browserstack-tunnel')->end()
                 ->booleanNode('emulator')->end()
                 ->booleanNode('acceptSslCert')->end()
+            	->scalarNode('realMobile')->end() 
+		->booleanNode('browserstack-ie-enablePopups')->end() 
+		->booleanNode('browserstack-safari-enablePopups')->end()
             ->end()
         ;