diff --git a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptTestBase.php b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptTestBase.php
index fd7df67..e95fa49 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptTestBase.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptTestBase.php
@@ -3,6 +3,7 @@
 namespace Drupal\FunctionalJavascriptTests;
 
 use Drupal\simpletest\BrowserTestBase;
+use GuzzleHttp\Exception\ConnectException;
 use Zumba\Mink\Driver\PhantomJSDriver;
 
 /**
diff --git a/core/tests/bootstrap.php b/core/tests/bootstrap.php
index f1f7862..12c4deb 100644
--- a/core/tests/bootstrap.php
+++ b/core/tests/bootstrap.php
@@ -104,6 +104,8 @@ function drupal_phpunit_populate_class_loader() {
   // Start with classes in known locations.
   $loader->add('Drupal\\Tests', __DIR__);
   $loader->add('Drupal\\KernelTests', __DIR__);
+  $loader->add('Drupal\\FunctionalTests', __DIR__);
+  $loader->add('Drupal\\FunctionalJavascriptTests', __DIR__);
 
   if (!isset($GLOBALS['namespaces'])) {
     // Scan for arbitrary extension namespaces from core and contrib.