diff --git a/lib/saulabs/gauss.rb b/lib/saulabs/gauss.rb
index ae14678..7640e4a 100644
--- a/lib/saulabs/gauss.rb
+++ b/lib/saulabs/gauss.rb
@@ -1,4 +1,7 @@
 # -*- encoding : utf-8 -*-
-Dir.glob("#{File.dirname(__FILE__)}/gauss/**/*.rb").each do |src|
-  require src
+%w(
+  distribution
+  truncated_correction
+).each do |name|
+  require File.expand_path(File.join(File.dirname(__FILE__), "gauss", "#{name}.rb"))
 end
diff --git a/lib/saulabs/trueskill.rb b/lib/saulabs/trueskill.rb
index e4a07be..7db9c54 100644
--- a/lib/saulabs/trueskill.rb
+++ b/lib/saulabs/trueskill.rb
@@ -1,8 +1,42 @@
 # -*- encoding : utf-8 -*-
 require 'pp'
 
-require "#{File.dirname(__FILE__)}/gauss.rb"
+require File.expand_path(File.join(File.dirname(__FILE__), "gauss.rb"))
 
-Dir.glob("#{File.dirname(__FILE__)}/trueskill/**/*.rb").sort.each do |src|
-  require src
+%w(
+  base greater_than
+  likelihood
+  prior
+  weighted_sum
+  within
+).each do |name|
+  require File.expand_path(File.join(File.dirname(__FILE__), "trueskill", "factors", "#{name}.rb"))
+end
+
+%w(
+  base 
+  iterated_team_performances
+  performances_to_team_performances
+  prior_to_skills
+  skills_to_performances
+  team_difference_comparision
+  team_performance_differences
+).each do |name|
+  require File.expand_path(File.join(File.dirname(__FILE__), "trueskill", "layers", "#{name}.rb"))
+end
+
+%w(
+  base
+  loop
+  sequence
+  step
+).each do |name|
+  require File.expand_path(File.join(File.dirname(__FILE__), "trueskill", "schedules", "#{name}.rb"))
+end
+
+%w(
+  rating
+  factor_graph
+).each do |name|
+  require File.expand_path(File.join(File.dirname(__FILE__), "trueskill", "#{name}.rb"))
 end