diff --git a/db/migrate/20120202190701_remove_public_share_visibilities.rb b/db/migrate/20120202190701_remove_public_share_visibilities.rb
index 5c1607485..e51805a93 100644
--- a/db/migrate/20120202190701_remove_public_share_visibilities.rb
+++ b/db/migrate/20120202190701_remove_public_share_visibilities.rb
@@ -41,6 +41,6 @@ class RemovePublicShareVisibilities < ActiveRecord::Migration
   end
 
   def self.down
-    #raise ActiveRecord::IrreversibleMigration
+    raise ActiveRecord::IrreversibleMigration
   end
 end