diff --git a/db/migrate/20130807202516_add_last_match_index_to_blocked_emails.rb b/db/migrate/20130807202516_add_last_match_index_to_blocked_emails.rb
new file mode 100644
index 00000000000..4a49304ee4d
--- /dev/null
+++ b/db/migrate/20130807202516_add_last_match_index_to_blocked_emails.rb
@@ -0,0 +1,5 @@
+class AddLastMatchIndexToBlockedEmails < ActiveRecord::Migration
+  def change
+    add_index :blocked_emails, :last_match_at
+  end
+end