diff --git a/lib/facter/concat_basedir.rb b/lib/facter/concat_basedir.rb
new file mode 100644
index 0000000..02e9c5b
--- /dev/null
+++ b/lib/facter/concat_basedir.rb
@@ -0,0 +1,5 @@
+Facter.add("concat_basedir") do
+    setcode do
+        File.join(Puppet[:vardir],"concat")
+    end
+end
diff --git a/manifests/setup.pp b/manifests/setup.pp
index fa8c7eb..5b3ad26 100644
--- a/manifests/setup.pp
+++ b/manifests/setup.pp
@@ -14,7 +14,7 @@
 # It also copies out the concatfragments.sh file to /usr/local/bin
 class concat::setup {
     $root_group = 0
-    $concatdir = "/var/lib/puppet/concat"
+    $concatdir = $concat_basedir
     $majorversion = regsubst($puppetversion, '^[0-9]+[.]([0-9]+)[.][0-9]+$', '\1')
 
     file{"/usr/local/bin/concatfragments.sh":