diff --git a/core/modules/block/lib/Drupal/block/Tests/BlockTest.php b/core/modules/block/lib/Drupal/block/Tests/BlockTest.php
index 324e70f..ea3d306 100644
--- a/core/modules/block/lib/Drupal/block/Tests/BlockTest.php
+++ b/core/modules/block/lib/Drupal/block/Tests/BlockTest.php
@@ -172,7 +172,7 @@ public function testBlockThemeSelector() {
    * Test block display of theme titles.
    */
   function testThemeName() {
-     module_enable(array('block_test'));
+     \Drupal::moduleHandler()->install(array('block_test'));
      // Explicitly set the default and admin themes.
      $theme = 'cat_mouse';
      theme_enable(array($theme, 'seven', 'block_test_theme'));