diff --git a/core/modules/dynamic_page_cache/dynamic_page_cache.module b/core/modules/dynamic_page_cache/dynamic_page_cache.module
index 67d6131..cc80d4a 100644
--- a/core/modules/dynamic_page_cache/dynamic_page_cache.module
+++ b/core/modules/dynamic_page_cache/dynamic_page_cache.module
@@ -14,12 +14,12 @@ function dynamic_page_cache_help($route_name, RouteMatchInterface $route_match)
   switch ($route_name) {
     case 'help.page.dynamic_page_cache':
       $output = '<h3>' . t('About') . '</h3>';
-      $output .= '<p>' . t('The Dynamic Page Cache module caches pages for all users in the database, handling dynamic content correctly. For more information, see the <a href=":dynamic_page_cache-documentation">online documentation for the Dynamic Page Cache module</a>.', [':dynamic_page_cache-documentation' => 'https://www.drupal.org/documentation/modules/dynamic_page_cache']) . '</p>';
+      $output .= '<p>' . t('The Internal Dynamic Page Cache module caches pages for all users in the database, handling dynamic content correctly. For more information, see the <a href=":dynamic_page_cache-documentation">online documentation for the Dynamic Page Cache module</a>.', [':dynamic_page_cache-documentation' => 'https://www.drupal.org/documentation/modules/dynamic_page_cache']) . '</p>';
       $output .= '<h3>' . t('Uses') . '</h3>';
       $output .= '<dl>';
       $output .= '<dt>' . t('Speeding up your site') . '</dt>';
       $output .= '<dd>' . t('Pages which are suitable for caching are cached the first time they are requested, then the cached version is served for all later requests. Dynamic content is handled automatically so that both cache correctness and hit ratio is maintained.') . '</dd>';
-      $output .= '<dd>' . t('The module requires no configuration. Every part of the page contains metadata that allows Dynamic Page Cache to figure this out on its own.') . '</dd>';
+      $output .= '<dd>' . t('The module requires no configuration. Every part of the page contains metadata that allows Internal Dynamic Page Cache to figure this out on its own.') . '</dd>';
       $output .= '</dl>';
 
       return $output;
diff --git a/core/modules/system/src/Tests/Module/InstallUninstallTest.php b/core/modules/system/src/Tests/Module/InstallUninstallTest.php
index b8b8499..1686ed4 100644
--- a/core/modules/system/src/Tests/Module/InstallUninstallTest.php
+++ b/core/modules/system/src/Tests/Module/InstallUninstallTest.php
@@ -309,9 +309,7 @@ protected function assertHelp($module, $name) {
     $this->drupalGet('admin/help/' . $module);
     $this->assertResponse(200, "Help for $module displayed successfully");
     $this->assertText($name . ' module', "'$name module' is on the help page for $module");
-    // @todo Uncomment the next line to assert the online documentation link.
-    // Issue: https://www.drupal.org/node/2493475
-    // $this->assertLink('online documentation for the ' . $name . ' module', 0, "Correct online documentation link is in the help page for $module");
+    $this->assertLink('online documentation for the ' . $name . ' module', 0, "Correct online documentation link is in the help page for $module");
   }
 
   /**
diff --git a/core/modules/system/tests/modules/update_test_postupdate/update_test_postupdate.info.yml b/core/modules/system/tests/modules/update_test_postupdate/update_test_postupdate.info.yml
index 9dcff3a..47b52a2 100644
--- a/core/modules/system/tests/modules/update_test_postupdate/update_test_postupdate.info.yml
+++ b/core/modules/system/tests/modules/update_test_postupdate/update_test_postupdate.info.yml
@@ -1,3 +1,4 @@
 core: 8.x
 name: Update test after
 type: module
+package: Testing