--- bar/facter-1.5.8/lib/facter/ec2.rb	2010-08-27 23:57:21.000000000 +0000
+++ foo/facter-1.5.8/lib/facter/ec2.rb	2011-04-22 03:19:29.000000000 +0000
@@ -6,7 +6,7 @@
 require 'timeout'
 
 def can_connect?(ip,port,wait_sec=2)
- Timeout::timeout(wait_sec) {open(ip, port)}
+ Timeout::timeout(wait_sec) {open("http://#{ip}:#{port}")}
  return true
 rescue
   return false