diff --git a/core/modules/migrate_drupal_ui/src/Tests/MigrateUpgradeTestBase.php b/core/modules/migrate_drupal_ui/src/Tests/MigrateUpgradeTestBase.php
index ae027e8..39fb80c 100644
--- a/core/modules/migrate_drupal_ui/src/Tests/MigrateUpgradeTestBase.php
+++ b/core/modules/migrate_drupal_ui/src/Tests/MigrateUpgradeTestBase.php
@@ -149,6 +149,8 @@ protected function testMigrateUpgrade() {
     $this->drupalPostForm(NULL, [], t('Perform upgrade'));
     $this->assertText(t('Congratulations, you upgraded Drupal!'));
     $this->assertMigrationResults($this->getEntityCountsIncremental());
+
+    \Drupal::service('module_installer')->install(['forum']);
   }
 
   /**
@@ -200,7 +202,6 @@ protected function assertMigrationResults(array $expected_counts) {
         }
       }
     }
-    \Drupal::service('module_installer')->install(['forum']);
     return $return;
   }