diff --git a/core/modules/system/tests/src/FunctionalJavascript/ModuleFilterTest.php b/core/modules/system/tests/src/FunctionalJavascript/ModuleFilterTest.php
index 6313f96a62..d20ad3cba0 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/ModuleFilterTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/ModuleFilterTest.php
@@ -76,11 +76,13 @@ public function testModuleFilter() {
   /**
    * Removes any non-visible elements from the passed array.
    *
-   * @param array $elements
-   * @return array
+   * @param \Behat\Mink\Element\NodeElement[] $elements
+   *   An array of node elements.
+   *
+   * @return \Behat\Mink\Element\NodeElement[]
    */
   protected function filterVisibleElements($elements) {
-    $elements = array_filter($elements, function($element) {
+    $elements = array_filter($elements, function ($element) {
       return $element->isVisible();
     });
     return $elements;