diff --git a/lib/puppet/parser/functions/fqdn_rand.rb b/lib/puppet/parser/functions/fqdn_rand.rb
index 52946f2c1..91157a148 100644
--- a/lib/puppet/parser/functions/fqdn_rand.rb
+++ b/lib/puppet/parser/functions/fqdn_rand.rb
@@ -1,12 +1,12 @@
 Puppet::Parser::Functions::newfunction(:fqdn_rand, :type => :rvalue, :doc =>
   "Generates random numbers based on the node's fqdn. Generated random values
   will be a range from 0 up to and excluding n, where n is the first parameter.
   The second argument specifies a number to add to the seed and is optional, for example:
 
       $random_number = fqdn_rand(30)
       $random_number_seed = fqdn_rand(30,30)") do |args|
-    require 'md5'
+    require 'digest/md5'
     max = args.shift
-    srand MD5.new([lookupvar('fqdn'),args].join(':')).to_s.hex
+    srand(Digest::MD5.hexdigest([lookupvar('fqdn'),args].join(':')).hex)
     rand(max).to_s
 end