diff --git a/db/migrate/20110311220249_downcase_tags.rb b/db/migrate/20110311220249_downcase_tags.rb
index f25ce94140439677259a55c87b74a7706810ceee..7b159382af64650a30ec915476f37b2b08ede63c 100644
--- a/db/migrate/20110311220249_downcase_tags.rb
+++ b/db/migrate/20110311220249_downcase_tags.rb
@@ -1,5 +1,5 @@
 class DowncaseTags < ActiveRecord::Migration
-  def consolidate_tags_with_name(name)
+  def self.consolidate_tags_with_name(name)
     tags = execute("SELECT * FROM tags WHERE tags.name = ?;", name)
     keep_tag = tags.pop
     tags.each do |bad_tag|