diff --git a/lib/gitlab/background_migration/models/encrypt_columns/settings.rb b/lib/gitlab/background_migration/models/encrypt_columns/settings.rb
index 7caed7f77aa..08ae35c0671 100644
--- a/lib/gitlab/background_migration/models/encrypt_columns/settings.rb
+++ b/lib/gitlab/background_migration/models/encrypt_columns/settings.rb
@@ -15,7 +15,7 @@ module Gitlab
           self.inheritance_column = :_type_disabled
 
           after_commit do
-            ApplicationSetting.expire
+            ::ApplicationSetting.expire
           end
 
           def runners_registration_token=(value)