diff --git a/app/lib/plugin_initializers/assigned_reminder_exclude_solved.rb b/app/lib/plugin_initializers/assigned_reminder_exclude_solved.rb
index 611a376..63a513f 100644
--- a/app/lib/plugin_initializers/assigned_reminder_exclude_solved.rb
+++ b/app/lib/plugin_initializers/assigned_reminder_exclude_solved.rb
@@ -18,7 +18,7 @@ module DiscourseSolved
     def apply_plugin_api
       plugin.register_modifier(:assigns_reminder_assigned_topics_query) do |query|
         next query if !SiteSetting.ignore_solved_topics_in_assigned_reminder
-        query.where.not(id: DiscourseSolved::Solution.pluck(:topic_id))
+        query.where.not(id: DiscourseSolved::Solution.select(:topic_id))
       end
     end
   end