diff --git a/app/models/site_setting.rb b/app/models/site_setting.rb
index a457b3368..98dfe84f7 100644
--- a/app/models/site_setting.rb
+++ b/app/models/site_setting.rb
@@ -88,7 +88,10 @@ class SiteSetting < ActiveRecord::Base
 
   def self.has_enough_topics_to_redirect_to_top
     TopTopic.periods.each do |period|
-      return true if TopTopic.where("#{period}_score > 0").count >= SiteSetting.topics_per_period_in_top_page
+      topics_per_period = TopTopic.where("#{period}_score > 0")
+                                  .limit(SiteSetting.topics_per_period_in_top_page)
+                                  .count
+      return true if topics_per_period >= SiteSetting.topics_per_period_in_top_page
     end
     # nothing
     false