diff --git a/lib/tasks/populate.rake b/lib/tasks/populate.rake
index 0f35e41..f777b6c 100644
--- a/lib/tasks/populate.rake
+++ b/lib/tasks/populate.rake
@@ -2,16 +2,16 @@ namespace :db do
 
   desc "Loads initial database models for the current environment."
   task :populate => :environment do
-    require 'create_or_update'
-    Dir[File.join(RAILS_ROOT, 'db', 'populate', '*.rb')].sort.each do |fixture|
+    require File.join(File.dirname(__FILE__), '/../../lib', 'create_or_update')
+    Dir[File.join(Rails.root, 'db', 'populate', '*.rb')].sort.each do |fixture|
       load fixture
       puts "Loaded #{fixture}"
     end
-    (Dir[File.join(RAILS_ROOT, 'db', 'populate', RAILS_ENV, '*.rb')] + Dir[File.join(RAILS_ROOT, 'db', 'populate', 'shared', '*.rb')]).sort{|x,y| File.basename(x) <=> File.basename(y)}.each do |fixture|
+    (Dir[File.join(Rails.root, 'db', 'populate', Rails.env, '*.rb')] + Dir[File.join(Rails.root, 'db', 'populate', 'shared', '*.rb')]).sort{|x,y| File.basename(x) <=> File.basename(y)}.each do |fixture|
       load fixture
       puts "Loaded #{fixture}"
     end
-    Dir[File.join(RAILS_ROOT, 'db', 'populate', 'after', '*.rb')].sort.each do |fixture|
+    Dir[File.join(Rails.root, 'db', 'populate', 'after', '*.rb')].sort.each do |fixture|
       load fixture
       puts "Loaded #{fixture}"
     end