diff --git a/lib/generators/active_record/templates/migration_existing.rb b/lib/generators/active_record/templates/migration_existing.rb
index 764bf71..491e1f9 100644
--- a/lib/generators/active_record/templates/migration_existing.rb
+++ b/lib/generators/active_record/templates/migration_existing.rb
@@ -1,9 +1,5 @@
-class AddAASMTo<%= table_name.camelize %> < ActiveRecord::Migration
-  def self.up
+class Add<%= column_name.camelize %>To<%= table_name.camelize %> < ActiveRecord::Migration
+  def change
     add_column :<%= table_name %>, :<%= column_name %>, :string
   end
-
-  def self.down
-    remove_column :<%= table_name %>, :<%= column_name %>
-  end
 end