diff --git a/core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php b/core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php
index 5a50e28ade..d7bc22d138 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php
@@ -34,7 +34,7 @@ abstract class WebDriverTestBase extends BrowserTestBase {
    * {@inheritdoc}
    */
   protected function initMink() {
-    if (!is_a($this->minkDefaultDriverClass, DrupalSelenium2Driver::class, TRUE)){
+    if (!is_a($this->minkDefaultDriverClass, DrupalSelenium2Driver::class, TRUE)) {
       throw new \UnexpectedValueException(sprintf("%s has to be an instance of %s", $this->minkDefaultDriverClass, DrupalSelenium2Driver::class));
     }
     $this->minkDefaultDriverArgs = ['chrome', NULL, 'http://localhost:4444'];