diff --git a/core/tests/Drupal/KernelTests/Core/Datetime/TimestampSchemaTest.php b/core/tests/Drupal/KernelTests/Core/Datetime/TimestampSchemaTest.php
index 5c16627bf6..43fbd42f4c 100644
--- a/core/tests/Drupal/KernelTests/Core/Datetime/TimestampSchemaTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Datetime/TimestampSchemaTest.php
@@ -17,7 +17,7 @@ class TimestampSchemaTest extends KernelTestBase {
   protected static $modules = ['entity_test', 'field', 'field_timestamp_test'];
 
   /**
-   *
+   * Tests if the timestamp field schema is validated.
    */
   public function testTimestampSchema() {
     $this->installConfig(['field_timestamp_test']);