diff --git a/Gemfile b/Gemfile
index 43ed791ebbe..60919ca63b1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,6 @@
 source 'https://rubygems.org'
+# if there is a super emergency and rubygems is playing up, try
+#source 'http://production.cf.rubygems.org'
 
 module ::Kernel
   def rails_master?