diff --git a/core/tests/Drupal/Tests/Core/Update/UpdateRegistryTest.php b/core/tests/Drupal/Tests/Core/Update/UpdateRegistryTest.php
index 5ef5ecf..de59c38 100644
--- a/core/tests/Drupal/Tests/Core/Update/UpdateRegistryTest.php
+++ b/core/tests/Drupal/Tests/Core/Update/UpdateRegistryTest.php
@@ -55,15 +55,15 @@ protected function setupBasicModules() {
 <?php
 
 /**
- * Module A update A.
+ * Module A update B.
  */
-function module_a_post_update_a() {
+function module_a_post_update_b() {
 }
 
 /**
- * Module A update B.
+ * Module A update A.
  */
-function module_a_post_update_b() {
+function module_a_post_update_a() {
 }
 
 EOS;