diff --git a/core/modules/simpletest/src/TestBase.php b/core/modules/simpletest/src/TestBase.php
index 260d1a34af..4f7dfe0bf6 100644
--- a/core/modules/simpletest/src/TestBase.php
+++ b/core/modules/simpletest/src/TestBase.php
@@ -58,6 +58,7 @@
   public $results = [
     '#pass' => 0,
     '#fail' => 0,
+    '#skipped' => 0,
     '#exception' => 0,
     '#debug' => 0,
   ];
@@ -287,7 +288,7 @@ protected function storeAssertion(array $assertion) {
    * Internal helper: stores the assert.
    *
    * @param $status
-   *   Can be 'pass', 'fail', 'exception', 'debug'.
+   *   Can be 'pass', 'fail', 'skipped', 'exception', 'debug'.
    *   TRUE is a synonym for 'pass', FALSE for 'fail'.
    * @param string|\Drupal\Component\Render\MarkupInterface $message
    *   (optional) A message to display with the assertion. Do not translate
diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
index e22dd3cdf3..942959214d 100644
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -759,7 +759,7 @@ function simpletest_script_execute_batch($test_classes) {
           // Ensure that an error line is displayed for the class.
           simpletest_script_reporter_display_summary(
             $child['class'],
-            ['#pass' => 0, '#fail' => 1, '#exception' => 0, '#debug' => 0]
+            ['#pass' => 0, '#fail' => 1, '#skipped' => 0, '#exception' => 0, '#debug' => 0]
           );
           if ($args['die-on-fail']) {
             list($db_prefix) = simpletest_last_test_get($child['test_id']);