diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index 9334a88..2e9e44d 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -7,6 +7,8 @@
 
 use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Cache\Cache;
+use Drupal\Core\Database\DatabaseExceptionWrapper;
+use Drupal\Core\Entity\Query\QueryException;
 use Drupal\Core\Extension\Extension;
 use Drupal\Core\Extension\ExtensionDiscovery;
 use Drupal\Core\Form\FormState;
@@ -1045,6 +1047,27 @@ function system_system_info_alter(&$info, Extension $file, $type) {
     $info['regions_hidden'][] = 'page_top';
     $info['regions_hidden'][] = 'page_bottom';
   }
+
+  if ($type == 'module' && empty($info['required'])) {
+    foreach (\Drupal::entityManager()->getDefinitions() as $entity_type) {
+      try {
+        if ($file->getName() == $entity_type->getProvider() &&
+          is_subclass_of($entity_type->getClass(), '\Drupal\Core\Entity\ContentEntityInterface') &&
+          \Drupal::entityQuery($entity_type->id())->accessCheck(FALSE)->count()->execute()
+        ) {
+          $info['required'] = TRUE;
+          $info['explanation'] = t('Content in use');
+        }
+      }
+      // @todo Remove once https://www.drupal.org/node/2337753 is fixed.
+      catch (QueryException $e) {
+      }
+      // @todo Some KernelTestBase tests install entity types without their
+      //   schema. Figure out what to do about that and then remove this.
+      catch (DatabaseExceptionWrapper $e) {
+      }
+    }
+  }
 }
 
 /**