diff --git a/core/tests/Drupal/KernelTests/Core/Database/DatabaseLegacyTest.php b/core/tests/Drupal/KernelTests/Core/Database/DatabaseLegacyTest.php
index 180c6dac6f..add7050607 100644
--- a/core/tests/Drupal/KernelTests/Core/Database/DatabaseLegacyTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Database/DatabaseLegacyTest.php
@@ -213,7 +213,7 @@ public function testDbMerge() {
    * @expectedDeprecation db_update() is deprecated in Drupal 8.0.x and will be removed before Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call call update() on it. For example, $injected_database->update($table, $options); See https://www.drupal.org/node/2993033
    */
   public function testDbUpdate() {
-    $this->assertInstanceOf(Update::class, db_update());
+    $this->assertInstanceOf(Update::class, db_update('test'));
   }
 
 }