diff --git a/db/migrate/20150319114233_change_default_content_privacy.rb b/db/migrate/20150319114233_change_default_content_privacy.rb
index 4f7010a..7cd861b 100644
--- a/db/migrate/20150319114233_change_default_content_privacy.rb
+++ b/db/migrate/20150319114233_change_default_content_privacy.rb
@@ -3,10 +3,13 @@ class ChangeDefaultContentPrivacy < ActiveRecord::Migration
     ids = execute("SELECT id from profiles WHERE NOT public_profile")
     profiles_ids = ids.map { |p| p["id"] }
     unless ids.num_tuples.zero?
-      execute("UPDATE articles SET published = (1>2), show_to_followers = (1=1)
-      WHERE profile_id IN (#{profiles_ids.join(",")}) AND published")
-      blocks = Block.includes(:box).where(:boxes => {:owner_type => "Profile", :owner_id => profiles_ids}).where('type != ?', "MainBlock")
-      blocks.each do |block|
+      execute('UPDATE articles SET published = (1>2), show_to_followers = (1=1)
+       FROM articles AS a INNER JOIN profiles ON a.profile_id = profiles.id
+        WHERE NOT profiles.public_profile AND articles.id = a.id AND a.published = (1=1)')
+      Block.includes(:box).where(
+        :boxes => {:owner_type => "Profile", 
+          :owner_id => profiles_ids}).where(
+            'type != ?', "MainBlock").find_each do |block|
         block.display_user = 'followers'
         block.save
       end
--
libgit2 0.21.2