diff --git a/app/models/locomotive/extensions/page/tree.rb b/app/models/locomotive/extensions/page/tree.rb
index 41adf835..a1f97fa4 100644
--- a/app/models/locomotive/extensions/page/tree.rb
+++ b/app/models/locomotive/extensions/page/tree.rb
@@ -18,7 +18,7 @@ module Locomotive
 
           ## indexes ##
           index :position
-          index [:depth.asc, :position.asc]
+          index [[:depth, Mongo::ASCENDING], [:position, Mongo::ASCENDING]]
         end
 
         module ClassMethods
diff --git a/lib/tasks/locomotive.rake b/lib/tasks/locomotive.rake
index bcd10005..e022978e 100644
--- a/lib/tasks/locomotive.rake
+++ b/lib/tasks/locomotive.rake
@@ -60,4 +60,5 @@ namespace :locomotive do
     end
 
   end
+
 end