diff --git a/config/boot.rb b/config/boot.rb
index a8e494ed..bb844558 100644
--- a/config/boot.rb
+++ b/config/boot.rb
@@ -158,5 +158,8 @@ module Rails
   end
 end
 
+# working around deprecation in RubyGems 1.6
+require 'thread'
+
 # All that for this:
 Rails.boot!