diff --git a/db/migrate/20150130052716_add_external.rb b/db/migrate/20150130052716_add_external.rb
index 99281c03..8c083df7 100644
--- a/db/migrate/20150130052716_add_external.rb
+++ b/db/migrate/20150130052716_add_external.rb
@@ -2,14 +2,12 @@ class AddExternal < ActiveRecord::Migration
   def up
     change_column :dmsf_links, :target_id, :integer, :null => true
 
-    add_column :dmsf_links, :external_url, :string, :null => true
-    add_column :dmsf_links, :user_id, :integer
+    add_column :dmsf_links, :external_url, :string, :null => true    
   end
 
   def down
     change_column :dmsf_links, :target_id, :integer, :null => false
 
-    remove_column :dmsf_links, :external_url
-    remove_column :dmsf_links, :user_id
+    remove_column :dmsf_links, :external_url    
   end
 end