diff --git a/db/migrate/20150301224250_create_suggested_for_index.rb b/db/migrate/20150301224250_create_suggested_for_index.rb
new file mode 100644
index 00000000000..dece3539055
--- /dev/null
+++ b/db/migrate/20150301224250_create_suggested_for_index.rb
@@ -0,0 +1,6 @@
+class CreateSuggestedForIndex < ActiveRecord::Migration
+  def change
+    add_index :topics, [:created_at, :visible],
+                where: "deleted_at IS NULL AND archetype <> 'private_message'"
+  end
+end