diff --git a/db/migrate/20131227164338_add_scores_to_top_topics.rb b/db/migrate/20131227164338_add_scores_to_top_topics.rb
index e8acad62b..e9bf28fb3 100644
--- a/db/migrate/20131227164338_add_scores_to_top_topics.rb
+++ b/db/migrate/20131227164338_add_scores_to_top_topics.rb
@@ -1,6 +1,6 @@
 class AddScoresToTopTopics < ActiveRecord::Migration
   def change
-    TopTopic.periods.each do |period|
+    [:daily, :weekly, :monthly, :yearly].each do |period|
       add_column :top_topics, "#{period}_score".to_sym, :float
     end
   end
diff --git a/db/migrate/20140408152401_add_default_value_to_top_topic_scores.rb b/db/migrate/20140408152401_add_default_value_to_top_topic_scores.rb
index 9a49627ee..7eb230ddd 100644
--- a/db/migrate/20140408152401_add_default_value_to_top_topic_scores.rb
+++ b/db/migrate/20140408152401_add_default_value_to_top_topic_scores.rb
@@ -1,6 +1,6 @@
 class AddDefaultValueToTopTopicScores < ActiveRecord::Migration
   def change
-    TopTopic.periods.each do |period|
+    [:daily, :weekly, :monthly, :yearly].each do |period|
       change_column_default :top_topics, "#{period}_score".to_sym, 0
     end
   end