diff --git a/lib/puppet/parser/functions/fqdn_rotate.rb b/lib/puppet/parser/functions/fqdn_rotate.rb
index 1437caa38..0b4145159 100644
--- a/lib/puppet/parser/functions/fqdn_rotate.rb
+++ b/lib/puppet/parser/functions/fqdn_rotate.rb
@@ -36,7 +36,7 @@
 
   elements = result.size
 
-  seed = Digest::MD5.hexdigest([lookupvar('facts'), args].join(':')).hex
+  seed = Digest::MD5.hexdigest([self['facts']['networking']['fqdn'], args].join(':')).hex
   # deterministic_rand() was added in Puppet 3.2.0; reimplement if necessary
   if Puppet::Util.respond_to?(:deterministic_rand)
     offset = Puppet::Util.deterministic_rand(seed, elements).to_i